def setup(self):
thermo_data = self.options['thermo_data']
elements = self.options['elements']
thermo = species_data.Thermo(thermo_data, init_reacts=elements)
self.air_prods = thermo.products
self.num_prod = len(self.air_prods)
# inputs
set_TP = SetTotal(mode="T", fl_name="Fl_O:tot",
thermo_data=thermo_data,
init_reacts=elements)
params = ('T','P', 'init_prod_amounts')
self.add_subsystem('totals', set_TP, promotes_inputs=params,
promotes_outputs=('Fl_O:tot:*',))
# if self.options['statics']:
set_stat_MN = SetStatic(mode="MN", thermo_data=thermo_data,
init_reacts=elements, fl_name="Fl_O:stat")
self.add_subsystem('exit_static', set_stat_MN, promotes_inputs=('MN', 'W'),
promotes_outputs=('Fl_O:stat:*', ))
self.connect('totals.h','exit_static.ht')
self.connect('totals.S','exit_static.S')
self.connect('Fl_O:tot:P','exit_static.guess:Pt')
self.connect('totals.gamma', 'exit_static.guess:gamt')
def test_case_Area(self):
thermo = Thermo(janaf, init_reacts=constants.AIR_MIX)
p = Problem()
p.model.add_subsystem('set_total_TP', SetTotal(thermo_data=janaf), promotes_inputs=['b0', 'P'])
p.model.add_subsystem('set_static_A', SetStatic(mode='area', thermo_data=janaf), promotes_inputs=['b0', ('guess:Pt', 'P')])
p.model.set_input_defaults('b0', thermo.b0)
p.model.set_input_defaults('set_total_TP.T', val=518., units='degR')
p.model.set_input_defaults('P', val=14.7, units='psi')
p.model.set_input_defaults('set_static_A.W', val=1.5, units='lbm/s')
p.model.set_input_defaults('set_static_A.area', val=np.inf, units='inch**2')
p.model.connect('set_total_TP.flow:S', 'set_static_A.S')
p.model.connect('set_total_TP.flow:h', 'set_static_A.ht')
p.model.connect('set_total_TP.flow:gamma', 'set_static_A.guess:gamt')
p.set_solver_print(level=-1)
p.setup(check=False)
# 4 cases to check against
for i, data in enumerate(ref_data):
p['set_total_TP.T'] = data[h_map['Tt']]
p['P'] = data[h_map['Pt']]
p['set_static_A.area'] = data[h_map['A']]
p['set_static_A.W'] = data[h_map['W']]
if i is 5: # supersonic case
p['set_static_A.guess:MN'] = 3.
p.run_model()
# check outputs
npss_vars = ('Ps', 'Ts', 'MN', 'hs', 'rhos', 'gams', 'V', 'A', 's', 'ht')
Ps, Ts, MN, hs, rhos, gams, V, A, S, ht = tuple(
[data[h_map[v_name]] for v_name in npss_vars])
Ps_computed = p['set_static_A.flow:P']
Ts_computed = p['set_static_A.flow:T']
hs_computed = p['set_static_A.flow:h']
rhos_computed = p['set_static_A.flow:rho']
gams_computed = p['set_static_A.flow:gamma']
V_computed = p['set_static_A.flow:V']
A_computed = p['set_static_A.area']
MN_computed = p['set_static_A.MN']
tol = 1.0e-4
assert_near_equal(gams_computed, gams, tol)
assert_near_equal(MN_computed, MN, tol)
assert_near_equal(Ps_computed, Ps, tol)
assert_near_equal(Ts_computed, Ts, tol)
assert_near_equal(hs_computed, hs, tol)
assert_near_equal(rhos_computed, rhos, tol)
assert_near_equal(gams_computed, gams, tol)
assert_near_equal(V_computed, V, tol)
assert_near_equal(A_computed, A, tol)
def setup(self):
design = self.options['design']
thermo_data = self.options['thermo_data']
flow1_elements = self.options['Fl_I1_elements']
flow1_thermo = Thermo(thermo_data, init_reacts=flow1_elements)
n_flow1_prods = len(flow1_thermo.products)
in_flow = FlowIn(fl_name='Fl_I1', num_prods=n_flow1_prods)
self.add_subsystem('in_flow1', in_flow, promotes=['Fl_I1:*'])
flow2_elements = self.options['Fl_I2_elements']
flow2_thermo = Thermo(thermo_data, init_reacts=flow2_elements)
n_flow2_prods = len(flow2_thermo.products)
in_flow = FlowIn(fl_name='Fl_I2', num_prods=n_flow2_prods)
self.add_subsystem('in_flow2', in_flow, promotes=['Fl_I2:*'])
if design:
# internal flow station to compute the area that is needed to match the static pressures
if self.options['designed_stream'] == 1:
Fl1_stat = SetStatic(mode="Ps", thermo_data=thermo_data,
init_reacts=flow1_elements,
fl_name="Fl_I1_calc:stat")
self.add_subsystem('Fl_I1_stat_calc', Fl1_stat,
promotes_inputs=[('init_prod_amounts', 'Fl_I1:stat:n'), ('S', 'Fl_I1:tot:S'),
('ht', 'Fl_I1:tot:h'), ('W', 'Fl_I1:stat:W'), ('Ps', 'Fl_I2:stat:P')],
promotes_outputs=['Fl_I1_calc:stat*'])
self.add_subsystem('area_calc', AreaSum(), promotes_inputs=['Fl_I2:stat:area'],
promotes_outputs=[('area_sum', 'area')])
self.connect('Fl_I1_calc:stat:area', 'area_calc.Fl_I1:stat:area')
else:
Fl2_stat = SetStatic(mode="Ps", thermo_data=thermo_data,
init_reacts=flow2_elements,
fl_name="Fl_I2_calc:stat")
self.add_subsystem('Fl_I2_stat_calc', Fl2_stat,
promotes_inputs=[('init_prod_amounts', 'Fl_I2:tot:n'), ('S', 'Fl_I2:tot:S'),
('ht', 'Fl_I2:tot:h'), ('W', 'Fl_I2:stat:W'), ('Ps', 'Fl_I1:stat:P')],
promotes_outputs=['Fl_I2_calc:stat:*'])
self.add_subsystem('area_calc', AreaSum(), promotes_inputs=['Fl_I1:stat:area'],
promotes_outputs=[('area_sum', 'area')])
self.connect('Fl_I2_calc:stat:area', 'area_calc.Fl_I2:stat:area')
else:
if self.options['designed_stream'] == 1:
Fl1_stat = SetStatic(mode="area", thermo_data=thermo_data,
init_reacts=flow1_elements,
fl_name="Fl_I1_calc:stat")
self.add_subsystem('Fl_I1_stat_calc', Fl1_stat,
promotes_inputs=[('init_prod_amounts', 'Fl_I1:tot:n'), ('S', 'Fl_I1:tot:S'),
('ht', 'Fl_I1:tot:h'), ('W', 'Fl_I1:stat:W'),
('guess:Pt', 'Fl_I1:tot:P'), ('guess:gamt', 'Fl_I1:tot:gamma')],
promotes_outputs=['Fl_I1_calc:stat*'])
else:
Fl2_stat = SetStatic(mode="area", thermo_data=thermo_data,
init_reacts=flow2_elements,
fl_name="Fl_I2_calc:stat")
self.add_subsystem('Fl_I2_stat_calc', Fl2_stat,
promotes_inputs=[('init_prod_amounts', 'Fl_I2:tot:n'), ('S', 'Fl_I2:tot:S'),
('ht', 'Fl_I2:tot:h'), ('W', 'Fl_I2:stat:W'),
('guess:Pt', 'Fl_I2:tot:P'), ('guess:gamt', 'Fl_I2:tot:gamma')],
promotes_outputs=['Fl_I2_calc:stat*'])
self.add_subsystem('extraction_ratio', om.ExecComp('ER=Pt1/Pt2', Pt1={'units':'Pa'}, Pt2={'units':'Pa'}),
promotes_inputs=[('Pt1', 'Fl_I1:tot:P'), ('Pt2', 'Fl_I2:tot:P')],
promotes_outputs=['ER'])
mix_flow = MixFlow(thermo_data=thermo_data,
Fl_I1_elements=self.options['Fl_I1_elements'],
Fl_I2_elements=self.options['Fl_I2_elements'])
if self.options['designed_stream'] == 1:
self.add_subsystem('mix_flow', mix_flow,
promotes_inputs=['Fl_I1:tot:h', 'Fl_I1:tot:n', ('Fl_I1:stat:W','Fl_I1_calc:stat:W'), ('Fl_I1:stat:P','Fl_I1_calc:stat:P'),
('Fl_I1:stat:V','Fl_I1_calc:stat:V'), ('Fl_I1:stat:area','Fl_I1_calc:stat:area'),
'Fl_I2:tot:h', 'Fl_I2:tot:n', 'Fl_I2:stat:W', 'Fl_I2:stat:P', 'Fl_I2:stat:V', 'Fl_I2:stat:area'])
else:
self.add_subsystem('mix_flow', mix_flow,
promotes_inputs=['Fl_I1:tot:h', 'Fl_I1:tot:n', 'Fl_I1:stat:W', 'Fl_I1:stat:P', 'Fl_I1:stat:V', 'Fl_I1:stat:area',
'Fl_I2:tot:h', 'Fl_I2:tot:n', ('Fl_I2:stat:W','Fl_I2_calc:stat:W'), ('Fl_I2:stat:P','Fl_I2_calc:stat:P'),
('Fl_I2:stat:V','Fl_I2_calc:stat:V'), ('Fl_I2:stat:area','Fl_I2_calc:stat:area')])
# group to converge for the impulse balance
conv = self.add_subsystem('impulse_converge', om.Group(), promotes=['*'])
if self.options['internal_solver']:
newton = conv.nonlinear_solver = om.NewtonSolver()
newton.options['maxiter'] = 30
newton.options['atol'] = 1e-2
newton.options['solve_subsystems'] = True
newton.options['max_sub_solves'] = 20
newton.options['reraise_child_analysiserror'] = False
newton.linesearch = om.BoundsEnforceLS()
newton.linesearch.options['bound_enforcement'] = 'scalar'
newton.linesearch.options['iprint'] = -1
conv.linear_solver = om.DirectSolver(assemble_jac=True)
out_tot = SetTotal(thermo_data=thermo_data, mode='h', init_reacts=self.options['Fl_I1_elements'],
fl_name="Fl_O:tot")
conv.add_subsystem('out_tot', out_tot, promotes_outputs=['Fl_O:tot:*'])
self.connect('mix_flow.n_mix', 'out_tot.init_prod_amounts')
self.connect('mix_flow.ht_mix', 'out_tot.h')
# note: gets Pt from the balance comp
out_stat = SetStatic(mode="area", thermo_data=thermo_data,
init_reacts=self.options['Fl_I1_elements'],
fl_name="Fl_O:stat")
conv.add_subsystem('out_stat', out_stat, promotes_outputs=['Fl_O:stat:*'], promotes_inputs=['area', ])
self.connect('mix_flow.n_mix', 'out_stat.init_prod_amounts')
self.connect('mix_flow.W_mix','out_stat.W')
conv.connect('Fl_O:tot:S', 'out_stat.S')
self.connect('mix_flow.ht_mix', 'out_stat.ht')
conv.connect('Fl_O:tot:P', 'out_stat.guess:Pt')
conv.connect('Fl_O:tot:gamma', 'out_stat.guess:gamt')
conv.add_subsystem('imp_out', Impulse())
conv.connect('Fl_O:stat:P', 'imp_out.P')
conv.connect('Fl_O:stat:area', 'imp_out.area')
conv.connect('Fl_O:stat:V', 'imp_out.V')
conv.connect('Fl_O:stat:W', 'imp_out.W')
balance = conv.add_subsystem('balance', om.BalanceComp())
balance.add_balance('P_tot', val=100, units='psi', eq_units='N', lower=1e-3, upper=10000)
conv.connect('balance.P_tot', 'out_tot.P')
conv.connect('imp_out.impulse', 'balance.lhs:P_tot')
self.connect('mix_flow.impulse_mix', 'balance.rhs:P_tot') #note that this connection comes from outside the convergence group
def setup(self):
thermo_data = self.options['thermo_data']
elements = self.options['elements']
nozzType = self.options['nozzType']
lossCoef = self.options['lossCoef']
gas_thermo = species_data.Thermo(thermo_data, init_reacts=elements)
self.gas_prods = gas_thermo.products
num_prod = len(self.gas_prods)
self.add_subsystem('mach_choked', IndepVarComp(
'MN',
1.000,
))
# Create inlet flow station
in_flow = FlowIn(fl_name="Fl_I", num_prods=num_prod)
self.add_subsystem('in_flow', in_flow, promotes_inputs=['Fl_I:*'])
# PR_bal = self.add_subsystem('PR_bal', BalanceComp())
# PR_bal.add_balance('PR', units=None, eq_units='lbf/inch**2', lower=1.001)
# self.connect('PR_bal.PR', 'PR')
# self.connect('Ps_exhaust', 'PR_bal.lhs:PR')
# self.connect('Ps_calc', 'PR_bal.rhs:PR')
self.add_subsystem('PR_bal',
PR_bal(),
promotes_inputs=['*'],
promotes_outputs=['*'])
# Calculate pressure at the throat
prom_in = [('Pt_in', 'Fl_I:tot:P'), 'PR', 'dPqP']
self.add_subsystem('press_calcs',
PressureCalcs(),
promotes_inputs=prom_in,
promotes_outputs=['Ps_calc'])
# Calculate throat total flow properties
throat_total = SetTotal(thermo_data=thermo_data,
mode="h",
init_reacts=elements,
fl_name="Fl_O:tot")
prom_in = [('h', 'Fl_I:tot:h'), ('init_prod_amounts', 'Fl_I:tot:n')]
self.add_subsystem('throat_total',
throat_total,
promotes_inputs=prom_in,
promotes_outputs=['Fl_O:*'])
self.connect('press_calcs.Pt_th', 'throat_total.P')
# Calculate static properties for sonic flow
prom_in = [('ht', 'Fl_I:tot:h'), ('W', 'Fl_I:stat:W'),
('init_prod_amounts', 'Fl_I:tot:n')]
self.add_subsystem('staticMN',
SetStatic(mode="MN",
thermo_data=thermo_data,
init_reacts=elements),
promotes_inputs=prom_in)
self.connect('throat_total.S', 'staticMN.S')
self.connect('mach_choked.MN', 'staticMN.MN')
self.connect('press_calcs.Pt_th', 'staticMN.guess:Pt')
self.connect('throat_total.gamma', 'staticMN.guess:gamt')
# self.connect('Fl_I.flow:flow_products','staticMN.init_prod_amounts')
# Calculate static properties based on exit static pressure
prom_in = [('ht', 'Fl_I:tot:h'), ('W', 'Fl_I:stat:W'),
('Ps', 'Ps_calc'), ('init_prod_amounts', 'Fl_I:tot:n')]
self.add_subsystem('staticPs',
SetStatic(mode="Ps",
thermo_data=thermo_data,
init_reacts=elements),
promotes_inputs=prom_in)
self.connect('throat_total.S', 'staticPs.S')
# self.connect('press_calcs.Ps_calc', 'staticPs.Ps')
# self.connect('Fl_I.flow:flow_products','staticPs.init_prod_amounts')
# Calculate ideal exit flow properties
prom_in = [('ht', 'Fl_I:tot:h'), ('S', 'Fl_I:tot:S'),
('W', 'Fl_I:stat:W'), ('Ps', 'Ps_calc'),
('init_prod_amounts', 'Fl_I:tot:n')]
self.add_subsystem('ideal_flow',
SetStatic(mode="Ps",
thermo_data=thermo_data,
init_reacts=elements),
promotes_inputs=prom_in)
# self.connect('press_calcs.Ps_calc', 'ideal_flow.Ps')
# self.connect('Fl_I.flow:flow_products','ideal_flow.init_prod_amounts')
# Determine throat and exit flow properties based on nozzle type and exit static pressure
mux = Mux(nozzType=nozzType, fl_out_name='Fl_O')
prom_in = [('Ps:W', 'Fl_I:stat:W'), ('MN:W', 'Fl_I:stat:W'),
('Ps:P', 'Ps_calc'), 'Ps_calc']
self.add_subsystem('mux',
mux,
promotes_inputs=prom_in,
promotes_outputs=['*:stat:*'])
self.connect('throat_total.S', 'mux.S')
self.connect('staticPs.h', 'mux.Ps:h')
self.connect('staticPs.T', 'mux.Ps:T')
self.connect('staticPs.rho', 'mux.Ps:rho')
self.connect('staticPs.gamma', 'mux.Ps:gamma')
self.connect('staticPs.Cp', 'mux.Ps:Cp')
self.connect('staticPs.Cv', 'mux.Ps:Cv')
self.connect('staticPs.V', 'mux.Ps:V')
self.connect('staticPs.Vsonic', 'mux.Ps:Vsonic')
self.connect('staticPs.MN', 'mux.Ps:MN')
self.connect('staticPs.area', 'mux.Ps:area')
self.connect('staticMN.h', 'mux.MN:h')
self.connect('staticMN.T', 'mux.MN:T')
self.connect('staticMN.Ps', 'mux.MN:P')
self.connect('staticMN.rho', 'mux.MN:rho')
self.connect('staticMN.gamma', 'mux.MN:gamma')
self.connect('staticMN.Cp', 'mux.MN:Cp')
self.connect('staticMN.Cv', 'mux.MN:Cv')
self.connect('staticMN.V', 'mux.MN:V')
self.connect('staticMN.Vsonic', 'mux.MN:Vsonic')
self.connect('mach_choked.MN', 'mux.MN:MN')
self.connect('staticMN.area', 'mux.MN:area')
# Calculate nozzle performance paramters based on
perf_calcs = PerformanceCalcs(lossCoef=lossCoef)
if lossCoef == "Cv":
other_inputs = ['Cv', 'Ps_calc']
else:
other_inputs = ['Cfg', 'Ps_calc']
prom_in = [('W_in', 'Fl_I:stat:W')] + other_inputs
self.add_subsystem('perf_calcs',
perf_calcs,
promotes_inputs=prom_in,
promotes_outputs=['Fg'])
self.connect('ideal_flow.V', 'perf_calcs.V_ideal')
# self.connect('ideal_flow.area', 'perf_calcs.A_ideal')
if lossCoef == 'Cv':
self.connect('Fl_O:stat:V', 'perf_calcs.V_actual')
self.connect('Fl_O:stat:area', 'perf_calcs.A_actual')
self.connect('Fl_O:stat:P', 'perf_calcs.Ps_actual')
if self.options['internal_solver']:
newton = self.nonlinear_solver = NewtonSolver()
newton.options['atol'] = 1e-10
newton.options['rtol'] = 1e-10
newton.options['maxiter'] = 20
newton.options['iprint'] = 2
newton.options['solve_subsystems'] = True
newton.linesearch = BoundsEnforceLS()
newton.linesearch.options['bound_enforcement'] = 'scalar'
newton.linesearch.options['iprint'] = -1
self.linear_solver = DirectSolver(assemble_jac=True)
def setup(self):
#(self, mapclass=NCP01map(), design=True, thermo_data=species_data.janaf, elements=AIR_MIX, bleeds=[],statics=True):
map_data = self.options['map_data']
interp_method = self.options['map_interp_method']
map_extrap = self.options['map_extrap']
# self.linear_solver = ScipyGMRES()
# self.linear_solver.options['atol'] = 2e-8
# self.linear_solver.options['maxiter'] = 100
# self.linear_solver.options['restart'] = 100
# self.nonlinear_solver = Newton()
# self.nonlinear_solver.options['utol'] = 1e-9
design = self.options['design']
bleeds = self.options['bleed_names']
thermo_data = self.options['thermo_data']
elements = self.options['elements']
statics = self.options['statics']
thermo = species_data.Thermo(thermo_data, init_reacts=elements)
num_prod = thermo.num_prod
# Create inlet flow station
flow_in = FlowIn(fl_name='Fl_I', num_prods=num_prod)
self.add_subsystem('flow_in', flow_in, promotes_inputs=['Fl_I:*'])
self.add_subsystem('corrinputs',
CorrectedInputsCalc(),
promotes_inputs=('Nmech', ('W_in', 'Fl_I:stat:W'),
('Pt', 'Fl_I:tot:P'),
('Tt', 'Fl_I:tot:T')),
promotes_outputs=('Nc', 'Wc'))
map_calcs = CompressorMap(map_data=self.options['map_data'],
design=design,
interp_method=interp_method,
extrap=map_extrap)
self.add_subsystem('map',
map_calcs,
promotes=[
's_Nc', 's_eff', 's_Wc', 's_PR', 'Nc', 'Wc',
'PR', 'eff', 'SMN', 'SMW'
])
# Calculate pressure rise across compressor
self.add_subsystem('press_rise',
PressureRise(),
promotes_inputs=['PR', ('Pt_in', 'Fl_I:tot:P')])
# Calculate ideal flow station properties
self.add_subsystem('ideal_flow',
SetTotal(thermo_data=thermo_data,
mode='S',
init_reacts=elements),
promotes_inputs=[('S', 'Fl_I:tot:S'),
('init_prod_amounts', 'Fl_I:tot:n')
])
self.connect("press_rise.Pt_out", "ideal_flow.P")
# Calculate enthalpy rise across compressor
self.add_subsystem("enth_rise",
EnthalpyRise(),
promotes_inputs=['eff', ('inlet_ht', 'Fl_I:tot:h')])
self.connect("ideal_flow.h", "enth_rise.ideal_ht")
# Calculate real flow station properties
real_flow = SetTotal(thermo_data=thermo_data,
mode='h',
init_reacts=elements,
fl_name="Fl_O:tot")
self.add_subsystem('real_flow',
real_flow,
promotes_inputs=[('init_prod_amounts', 'Fl_I:tot:n')
],
promotes_outputs=['Fl_O:tot:*'])
self.connect("enth_rise.ht_out", "real_flow.h")
self.connect("press_rise.Pt_out", "real_flow.P")
#clculate Polytropic Efficiency
self.add_subsystem(
'eff_poly_calc',
eff_poly_calc(),
promotes_inputs=[
('PR', 'PR'),
('S_in', 'Fl_I:tot:S'),
('S_out', 'Fl_O:tot:S'),
# ('Cp','Fl_I:tot:Cp'),
# ('Cv','Fl_I:tot:Cv'),
('Rt', 'Fl_I:tot:R')
],
promotes_outputs=['eff_poly'])
# Calculate shaft power consumption
blds_pwr = BleedsAndPower(bleed_names=bleeds)
bld_inputs = ['frac_W', 'frac_P', 'frac_work']
bld_in_vars = [
'{0}:{1}'.format(bn, in_name)
for bn, in_name in itertools.product(bleeds, bld_inputs)
]
bld_out_globs = ['{}:*'.format(bn) for bn in bleeds]
self.add_subsystem('blds_pwr',
blds_pwr,
promotes_inputs=[
'Nmech',
('W_in', 'Fl_I:stat:W'),
('ht_in', 'Fl_I:tot:h'),
('Pt_in', 'Fl_I:tot:P'),
('Pt_out', 'Fl_O:tot:P'),
] + bld_in_vars,
promotes_outputs=['power', 'trq', 'W_out'] +
bld_out_globs)
self.connect('enth_rise.ht_out', 'blds_pwr.ht_out')
bleed_names = []
for BN in bleeds:
bleed_names.append(BN + '_flow')
bleed_flow = SetTotal(thermo_data=thermo_data,
mode='h',
init_reacts=elements,
fl_name=BN + ":tot")
self.add_subsystem(BN + '_flow',
bleed_flow,
promotes_inputs=[('init_prod_amounts',
'Fl_I:tot:n')],
promotes_outputs=['{}:tot:*'.format(BN)])
self.connect(BN + ':ht', BN + "_flow.h")
self.connect(BN + ':Pt', BN + "_flow.P")
self.add_subsystem('FAR_passthru',
PassThrough('Fl_I:FAR', 'Fl_O:FAR', 0.0),
promotes=['*'])
if statics:
if design:
# Calculate static properties
out_stat = SetStatic(mode='MN',
thermo_data=thermo_data,
init_reacts=elements,
fl_name="Fl_O:stat")
self.add_subsystem('out_stat',
out_stat,
promotes_inputs=[
'MN',
('init_prod_amounts', 'Fl_I:tot:n')
],
promotes_outputs=['Fl_O:stat:*'])
self.connect('Fl_O:tot:S', 'out_stat.S')
self.connect('Fl_O:tot:h', 'out_stat.ht')
self.connect('W_out', 'out_stat.W')
self.connect('Fl_O:tot:P', 'out_stat.guess:Pt')
self.connect('Fl_O:tot:gamma', 'out_stat.guess:gamt')
else: # Calculate static properties
out_stat = SetStatic(mode='area',
thermo_data=thermo_data,
init_reacts=elements,
fl_name="Fl_O:stat")
self.add_subsystem('out_stat',
out_stat,
promotes_inputs=[
'area',
('init_prod_amounts', 'Fl_I:tot:n')
],
promotes_outputs=['Fl_O:stat:*'])
self.connect('Fl_O:tot:S', 'out_stat.S')
self.connect('Fl_O:tot:h', 'out_stat.ht')
self.connect('W_out', 'out_stat.W')
self.connect('Fl_O:tot:P', 'out_stat.guess:Pt')
self.connect('Fl_O:tot:gamma', 'out_stat.guess:gamt')
self.set_order([
'flow_in', 'corrinputs', 'map', 'press_rise', 'ideal_flow',
'enth_rise', 'real_flow', 'eff_poly_calc', 'blds_pwr',
'FAR_passthru'
] + bleed_names + ['out_stat'])
else:
self.add_subsystem('W_passthru',
PassThrough('W_out',
'Fl_O:stat:W',
1.0,
units="lbm/s"),
promotes=['*'])
self.set_order([
'flow_in', 'corrinputs', 'map', 'press_rise', 'ideal_flow',
'enth_rise', 'real_flow', 'eff_poly_calc', 'blds_pwr',
'FAR_passthru'
] + bleed_names + ['W_passthru'])
def setup(self):
thermo_data = self.options['thermo_data']
elements = self.options['elements']
statics = self.options['statics']
design = self.options['design']
bleeds = self.options['bleed_names']
gas_thermo = species_data.Thermo(thermo_data, init_reacts=elements)
gas_prods = gas_thermo.products
num_prod = len(gas_prods)
# Create inlet flowstation
flow_in = FlowIn(fl_name='Fl_I', num_prods=num_prod)
self.add_subsystem('flow_in',
flow_in,
promotes=['Fl_I:tot:*', 'Fl_I:stat:*'])
# Bleed flow calculations
blds = BleedCalcs(bleed_names=bleeds)
bld_port_globs = ['{}:*'.format(bn) for bn in bleeds]
self.add_subsystem('bld_calcs',
blds,
promotes_inputs=[('W_in', 'Fl_I:stat:W'),
'*:frac_W'],
promotes_outputs=['W_out'] + bld_port_globs)
bleed_names = []
for BN in bleeds:
bleed_names.append(BN + '_flow')
bleed_flow = SetTotal(thermo_data=thermo_data,
mode='T',
init_reacts=elements,
fl_name=BN + ":tot")
self.add_subsystem(BN + '_flow',
bleed_flow,
promotes_inputs=[('init_prod_amounts',
'Fl_I:tot:n'),
('T', 'Fl_I:tot:T'),
('P', 'Fl_I:tot:P')],
promotes_outputs=['{}:tot:*'.format(BN)])
# Total Calc
real_flow = SetTotal(thermo_data=thermo_data,
mode='T',
init_reacts=elements,
fl_name="Fl_O:tot")
prom_in = [('init_prod_amounts', 'Fl_I:tot:n'), ('T', 'Fl_I:tot:T'),
('P', 'Fl_I:tot:P')]
self.add_subsystem('real_flow',
real_flow,
promotes_inputs=prom_in,
promotes_outputs=['Fl_O:*'])
if statics:
if design:
# Calculate static properties
out_stat = SetStatic(mode="MN",
thermo_data=thermo_data,
init_reacts=elements,
fl_name="Fl_O:stat")
prom_in = [('init_prod_amounts', 'Fl_I:tot:n'), 'MN']
prom_out = ['Fl_O:stat:*']
self.add_subsystem('out_stat',
out_stat,
promotes_inputs=prom_in,
promotes_outputs=prom_out)
self.connect('Fl_O:tot:S', 'out_stat.S')
self.connect('Fl_O:tot:h', 'out_stat.ht')
self.connect('Fl_O:tot:P', 'out_stat.guess:Pt')
self.connect('Fl_O:tot:gamma', 'out_stat.guess:gamt')
self.connect('W_out', 'out_stat.W')
else:
# Calculate static properties
out_stat = SetStatic(mode="area",
thermo_data=thermo_data,
init_reacts=elements,
fl_name="Fl_O:stat")
prom_in = [('init_prod_amounts', 'Fl_I:tot:n'), 'area']
prom_out = ['Fl_O:stat:*']
self.add_subsystem('out_stat',
out_stat,
promotes_inputs=prom_in,
promotes_outputs=prom_out)
self.connect('Fl_O:tot:S', 'out_stat.S')
self.connect('Fl_O:tot:h', 'out_stat.ht')
self.connect('Fl_O:tot:P', 'out_stat.guess:Pt')
self.connect('Fl_O:tot:gamma', 'out_stat.guess:gamt')
self.connect('W_out', 'out_stat.W')
else:
self.add_subsystem('W_passthru',
PassThrough('W_out',
'Fl_O:stat:W',
1.0,
units="lbm/s"),
promotes=['*'])
self.add_subsystem('FAR_passthru',
PassThrough('Fl_I:FAR', 'Fl_O:FAR', 0.0),
promotes=['*'])
def setup(self):
thermo_data = self.options['thermo_data']
elements = self.options['elements']
statics = self.options['statics']
design = self.options['design']
num_prod = species_data.Thermo(thermo_data,
init_reacts=elements).num_prod
# Create inlet flowstation
flow_in = FlowIn(fl_name='Fl_I', num_prods=num_prod)
self.add_subsystem('flow_in', flow_in, promotes_inputs=('Fl_I:*', ))
# Split the flows
self.add_subsystem('split_calc',
BPRcalc(),
promotes_inputs=('BPR', ('W_in', 'Fl_I:stat:W')))
# Set Fl_out1 totals based on T, P
real_flow1 = SetTotal(thermo_data=thermo_data,
mode='T',
init_reacts=elements,
fl_name="Fl_O1:tot")
self.add_subsystem('real_flow1',
real_flow1,
promotes_inputs=(('init_prod_amounts',
'Fl_I:tot:n'), ('P',
'Fl_I:tot:P'),
('T', 'Fl_I:tot:T')),
promotes_outputs=('Fl_O1:tot:*', ))
# Set Fl_out2 totals based on T, P
real_flow2 = SetTotal(thermo_data=thermo_data,
mode='T',
init_reacts=elements,
fl_name="Fl_O2:tot")
self.add_subsystem('real_flow2',
real_flow2,
promotes_inputs=(('init_prod_amounts',
'Fl_I:tot:n'), ('P',
'Fl_I:tot:P'),
('T', 'Fl_I:tot:T')),
promotes_outputs=('Fl_O2:tot:*', ))
if statics:
if design:
# Calculate static properties
out1_stat = SetStatic(mode="MN",
thermo_data=thermo_data,
init_reacts=elements,
fl_name="Fl_O1:stat")
prom_in = [('init_prod_amounts', 'Fl_I:tot:n'), ('MN', 'MN1')]
prom_out = ['Fl_O1:stat:*']
self.add_subsystem('out1_stat',
out1_stat,
promotes_inputs=prom_in,
promotes_outputs=prom_out)
self.connect('Fl_O1:tot:S', 'out1_stat.S')
self.connect('Fl_O1:tot:h', 'out1_stat.ht')
self.connect('Fl_O1:tot:P', 'out1_stat.guess:Pt')
self.connect('Fl_O1:tot:gamma', 'out1_stat.guess:gamt')
self.connect('split_calc.W1', 'out1_stat.W')
out2_stat = SetStatic(mode="MN",
thermo_data=thermo_data,
init_reacts=elements,
fl_name="Fl_O2:stat")
prom_in = [('init_prod_amounts', 'Fl_I:tot:n'), ('MN', 'MN2')]
prom_out = ['Fl_O2:stat:*']
self.add_subsystem('out2_stat',
out2_stat,
promotes_inputs=prom_in,
promotes_outputs=prom_out)
self.connect('Fl_O2:tot:S', 'out2_stat.S')
self.connect('Fl_O2:tot:h', 'out2_stat.ht')
self.connect('Fl_O2:tot:P', 'out2_stat.guess:Pt')
self.connect('Fl_O2:tot:gamma', 'out2_stat.guess:gamt')
self.connect('split_calc.W2', 'out2_stat.W')
else:
# Calculate static properties
out1_stat = SetStatic(mode="area",
thermo_data=thermo_data,
init_reacts=elements,
fl_name="Fl_O1:stat")
prom_in = [('init_prod_amounts', 'Fl_I:tot:n'),
('area', 'area1')]
prom_out = ['Fl_O1:stat:*']
self.add_subsystem('out1_stat',
out1_stat,
promotes_inputs=prom_in,
promotes_outputs=prom_out)
self.connect('Fl_O1:tot:S', 'out1_stat.S')
self.connect('Fl_O1:tot:h', 'out1_stat.ht')
self.connect('Fl_O1:tot:P', 'out1_stat.guess:Pt')
self.connect('Fl_O1:tot:gamma', 'out1_stat.guess:gamt')
self.connect('split_calc.W1', 'out1_stat.W')
out2_stat = SetStatic(mode="area",
thermo_data=thermo_data,
init_reacts=elements,
fl_name="Fl_O2:stat")
prom_in = [('init_prod_amounts', 'Fl_I:tot:n'),
('area', 'area2')]
prom_out = ['Fl_O2:stat:*']
self.add_subsystem('out2_stat',
out2_stat,
promotes_inputs=prom_in,
promotes_outputs=prom_out)
self.connect('Fl_O2:tot:S', 'out2_stat.S')
self.connect('Fl_O2:tot:h', 'out2_stat.ht')
self.connect('Fl_O2:tot:P', 'out2_stat.guess:Pt')
self.connect('Fl_O2:tot:gamma', 'out2_stat.guess:gamt')
self.connect('split_calc.W2', 'out2_stat.W')
else:
self.add_subsystem('W1_passthru',
PassThrough('split_calc_W1',
'Fl_O1:stat:W',
1.0,
units="lbm/s"),
promotes=['*'])
self.add_subsystem('W2_passthru',
PassThrough('split_calc_W2',
'Fl_O2:stat:W',
1.0,
units="lbm/s"),
promotes=['*'])
self.connect('split_calc.W1', 'split_calc_W1')
self.connect('split_calc.W2', 'split_calc_W2')
def setup(self):
thermo_data = self.options['thermo_data']
elements = self.options['elements']
statics = self.options['statics']
design = self.options['design']
gas_thermo = species_data.Thermo(thermo_data, init_reacts=elements)
gas_prods = gas_thermo.products
num_prod = len(gas_prods)
# Create inlet flow station
flow_in = FlowIn(fl_name='Fl_I', num_prods=num_prod)
self.add_subsystem('flow_in',
flow_in,
promotes=['Fl_I:tot:*', 'Fl_I:stat:*'])
# Perform inlet engineering calculations
self.add_subsystem('calcs_inlet',
Calcs(),
promotes_inputs=[
'ram_recovery', ('Pt_in', 'Fl_I:tot:P'),
('V_in', 'Fl_I:stat:V'), ('W_in', 'Fl_I:stat:W')
],
promotes_outputs=['F_ram'])
# Calculate real flow station properties
real_flow = SetTotal(thermo_data=thermo_data,
mode="T",
init_reacts=elements,
fl_name="Fl_O:tot")
self.add_subsystem('real_flow',
real_flow,
promotes_inputs=[('T', 'Fl_I:tot:T'),
('init_prod_amounts', 'Fl_I:tot:n')
],
promotes_outputs=['Fl_O:*'])
self.connect("calcs_inlet.Pt_out", "real_flow.P")
self.add_subsystem('FAR_passthru',
PassThrough('Fl_I:FAR', 'Fl_O:FAR', 0.0),
promotes=['*'])
if statics:
if design:
# Calculate static properties
self.add_subsystem('out_stat',
SetStatic(mode="MN",
thermo_data=thermo_data,
init_reacts=elements,
fl_name="Fl_O:stat"),
promotes_inputs=[
('init_prod_amounts', 'Fl_I:tot:n'),
('W', 'Fl_I:stat:W'), 'MN'
],
promotes_outputs=['Fl_O:stat:*'])
self.connect('Fl_O:tot:S', 'out_stat.S')
self.connect('Fl_O:tot:h', 'out_stat.ht')
self.connect('Fl_O:tot:P', 'out_stat.guess:Pt')
self.connect('Fl_O:tot:gamma', 'out_stat.guess:gamt')
else:
# Calculate static properties
out_stat = SetStatic(mode="area",
thermo_data=thermo_data,
init_reacts=elements,
fl_name="Fl_O:stat")
prom_in = [('init_prod_amounts', 'Fl_I:tot:n'),
('W', 'Fl_I:stat:W'), 'area']
prom_out = ['Fl_O:stat:*']
self.add_subsystem('out_stat',
out_stat,
promotes_inputs=prom_in,
promotes_outputs=prom_out)
self.connect('Fl_O:tot:S', 'out_stat.S')
self.connect('Fl_O:tot:h', 'out_stat.ht')
self.connect('Fl_O:tot:P', 'out_stat.guess:Pt')
self.connect('Fl_O:tot:gamma', 'out_stat.guess:gamt')
else:
self.add_subsystem('W_passthru',
PassThrough('Fl_I:stat:W',
'Fl_O:stat:W',
0.0,
units="lbm/s"),
promotes=['*'])
def setup(self):
thermo_data = self.options['thermo_data']
elements = self.options['elements']
bleed_elements = self.options['bleed_elements']
map_data = self.options['map_data']
designFlag = self.options['design']
bleeds = self.options['bleed_names']
statics = self.options['statics']
interp_method = self.options['map_interp_method']
map_extrap = self.options['map_extrap']
gas_thermo = species_data.Thermo(thermo_data, init_reacts=elements)
self.gas_prods = gas_thermo.products
self.num_prod = len(self.gas_prods)
bld_thermo = species_data.Thermo(thermo_data,
init_reacts=bleed_elements)
self.bld_prods = bld_thermo.products
self.num_bld_prod = len(self.bld_prods)
# Create inlet flow station
in_flow = FlowIn(fl_name='Fl_I', num_prods=self.num_prod)
self.add_subsystem('in_flow', in_flow, promotes_inputs=['Fl_I:*'])
self.add_subsystem('corrinputs',
CorrectedInputsCalc(),
promotes_inputs=[
'Nmech', ('W_in', 'Fl_I:stat:W'),
('Pt', 'Fl_I:tot:P'), ('Tt', 'Fl_I:tot:T')
],
promotes_outputs=['Np', 'Wp'])
turb_map = TurbineMap(map_data=map_data,
design=designFlag,
interp_method=interp_method,
extrap=map_extrap)
if designFlag:
self.add_subsystem(
'map',
turb_map,
promotes_inputs=['Np', 'Wp', 'PR', 'eff'],
promotes_outputs=['s_PR', 's_Wp', 's_eff', 's_Np'])
else:
self.add_subsystem(
'map',
turb_map,
promotes_inputs=['Np', 'Wp', 's_PR', 's_Wp', 's_eff', 's_Np'],
promotes_outputs=['PR', 'eff'])
# Calculate pressure drop across turbine
self.add_subsystem('press_drop',
PressureDrop(),
promotes_inputs=['PR', ('Pt_in', 'Fl_I:tot:P')])
# Calculate ideal flow station properties
self.add_subsystem('ideal_flow',
SetTotal(thermo_data=thermo_data,
mode='S',
init_reacts=elements),
promotes_inputs=[('S', 'Fl_I:tot:S'),
('init_prod_amounts', 'Fl_I:tot:n')
])
self.connect("press_drop.Pt_out", "ideal_flow.P")
# # Calculate enthalpy drop across turbine
# self.add_subsystem("enth_drop", EnthalpyDrop(), promotes=['eff'])
# self.connect("Fl_I:tot:h", "enth_drop.ht_in")
# self.connect("ideal_flow.h", "enth_drop.ht_out_ideal")
for BN in bleeds:
bld_flow = FlowIn(fl_name=BN, num_prods=self.num_bld_prod)
self.add_subsystem(BN,
bld_flow,
promotes_inputs=['{}:*'.format(BN)])
# Calculate bleed parameters
blds = Bleeds(bleed_names=bleeds, main_flow_elements=elements)
self.add_subsystem('blds',
blds,
promotes_inputs=[('W_in', 'Fl_I:stat:W'),
('Pt_in', 'Fl_I:tot:P'),
('n_in', 'Fl_I:tot:n')] +
['{}:frac_P'.format(BN) for BN in bleeds] +
[('{}:W'.format(BN), '{}:stat:W'.format(BN))
for BN in bleeds] +
[('{}:n'.format(BN), '{}:tot:n'.format(BN))
for BN in bleeds],
promotes_outputs=['W_out'])
self.connect('press_drop.Pt_out', 'blds.Pt_out')
bleed_names2 = []
for BN in bleeds:
# self.connect(BN+':stat:W','blds.{}:W'.format(BN))
# self.connect(BN+':tot:n','blds.{}:n'.format(BN))
# self.connect(BN+':stat:W','blds.%s:'%BN)
# Determine bleed inflow properties
bleed_names2.append(BN + '_inflow')
self.add_subsystem(BN + '_inflow',
SetTotal(thermo_data=thermo_data,
mode='h',
init_reacts=bleed_elements),
promotes_inputs=[('init_prod_amounts',
BN + ":tot:n"),
('h', BN + ':tot:h')])
self.connect('blds.' + BN + ':Pt', BN + "_inflow.P")
# Ideally expand bleeds to exit pressure
bleed_names2.append(BN + '_ideal')
self.add_subsystem(BN + '_ideal',
SetTotal(thermo_data=thermo_data,
mode='S',
init_reacts=bleed_elements),
promotes_inputs=[('init_prod_amounts',
BN + ":tot:n")])
self.connect(BN + "_inflow.flow:S", BN + "_ideal.S")
self.connect("press_drop.Pt_out", BN + "_ideal.P")
# Calculate shaft power and exit enthalpy with cooling flows production
self.add_subsystem('pwr_turb',
EnthalpyAndPower(bleed_names=bleeds),
promotes_inputs=[
'Nmech', 'eff', 'W_out',
('W_in', 'Fl_I:stat:W'), ('ht_in', 'Fl_I:tot:h')
] + [(BN + ':W', BN + ':stat:W') for BN in bleeds] +
[(BN + ':ht', BN + ':tot:h') for BN in bleeds] +
[(BN + ':ht_ideal', BN + '_ideal.h')
for BN in bleeds],
promotes_outputs=['power', 'trq', 'ht_out_b4bld'])
self.connect('ideal_flow.h', 'pwr_turb.ht_out_ideal')
# Calculate real flow station properties before bleed air is added
real_flow_b4bld = SetTotal(thermo_data=thermo_data,
mode='h',
init_reacts=elements,
fl_name="Fl_O_b4bld:tot")
self.add_subsystem('real_flow_b4bld',
real_flow_b4bld,
promotes_inputs=[('init_prod_amounts', 'Fl_I:tot:n')
])
self.connect('ht_out_b4bld', 'real_flow_b4bld.h')
self.connect('press_drop.Pt_out', 'real_flow_b4bld.P')
# Calculate Polytropic efficiency
self.add_subsystem('eff_poly_calc',
eff_poly_calc(),
promotes_inputs=[
'PR', ('S_in', 'Fl_I:tot:S'),
('Rt', 'Fl_I:tot:R')
],
promotes_outputs=['eff_poly'])
self.connect('real_flow_b4bld.Fl_O_b4bld:tot:S', 'eff_poly_calc.S_out')
# Calculate real flow station properties
real_flow = SetTotal(thermo_data=thermo_data,
mode='h',
init_reacts=elements,
fl_name="Fl_O:tot")
self.add_subsystem('real_flow',
real_flow,
promotes_outputs=['Fl_O:tot:*'])
self.connect("pwr_turb.ht_out", "real_flow.h")
self.connect("press_drop.Pt_out", "real_flow.P")
self.connect("blds.n_out", "real_flow.init_prod_amounts")
self.add_subsystem('FAR_passthru',
PassThrough('Fl_I:FAR', 'Fl_O:FAR', 0.0),
promotes=['*'])
# Calculate static properties
if statics:
if designFlag:
# SetStaticMN
out_stat = SetStatic(mode='MN',
thermo_data=thermo_data,
init_reacts=elements,
fl_name="Fl_O:stat")
self.add_subsystem('out_stat',
out_stat,
promotes_inputs=['MN'],
promotes_outputs=['Fl_O:stat:*'])
self.connect('blds.n_out', 'out_stat.init_prod_amounts')
self.connect('Fl_O:tot:S', 'out_stat.S')
self.connect('Fl_O:tot:h', 'out_stat.ht')
self.connect('W_out', 'out_stat.W')
self.connect('Fl_O:tot:P', 'out_stat.guess:Pt')
self.connect('Fl_O:tot:gamma', 'out_stat.guess:gamt')
else:
# SetStaticArea
out_stat = SetStatic(mode='area',
thermo_data=thermo_data,
init_reacts=elements,
fl_name="Fl_O:stat")
self.add_subsystem('out_stat',
out_stat,
promotes_inputs=['area'],
promotes_outputs=['Fl_O:stat:*'])
self.connect('blds.n_out', 'out_stat.init_prod_amounts')
self.connect('Fl_O:tot:S', 'out_stat.S')
self.connect('Fl_O:tot:h', 'out_stat.ht')
self.connect('W_out', 'out_stat.W')
self.connect('Fl_O:tot:P', 'out_stat.guess:Pt')
self.connect('Fl_O:tot:gamma', 'out_stat.guess:gamt')
self.set_order(
['in_flow', 'corrinputs', 'map', 'press_drop', 'ideal_flow'] +
bleeds + ['blds'] + bleed_names2 + [
'pwr_turb', 'real_flow_b4bld', 'eff_poly_calc',
'real_flow', 'FAR_passthru', 'out_stat'
])
else:
self.add_subsystem('W_passthru',
PassThrough('W_out',
'Fl_O:stat:W',
1.0,
units="lbm/s"),
promotes=['*'])
self.set_order(
['in_flow', 'corrinputs', 'map', 'press_drop', 'ideal_flow'] +
bleeds + ['blds'] + bleed_names2 + [
'pwr_turb', 'real_flow_b4bld', 'eff_poly_calc',
'real_flow', 'FAR_passthru', 'W_passthru'
])
def test_case_Area(self):
p = Problem()
indeps = p.model.add_subsystem('indeps',
IndepVarComp(),
promotes=['*'])
indeps.add_output('T', val=518., units='degR')
indeps.add_output('P', val=14.7, units='psi')
indeps.add_output('W', val=1.5, units='lbm/s')
indeps.add_output('area', val=np.inf, units='inch**2')
p.model.add_subsystem('set_total_TP', SetTotal(thermo_data=janaf))
p.model.add_subsystem('set_static_A',
SetStatic(mode='area', thermo_data=janaf))
p.model.connect('T', 'set_total_TP.T')
p.model.connect('P', ['set_total_TP.P', 'set_static_A.guess:Pt'])
p.model.connect('set_total_TP.flow:S', 'set_static_A.S')
p.model.connect('set_total_TP.flow:h', 'set_static_A.ht')
# p.model.connect('P', 'set_static_A.P')
p.model.connect('W', 'set_static_A.W')
p.model.connect('area', 'set_static_A.area')
p.model.connect('set_total_TP.flow:gamma', 'set_static_A.guess:gamt')
#p.model.connect('set_total_TP.flow:n', 'set_static_A.n_guess')
p.set_solver_print(level=-1)
p.setup(check=False)
# from openmdao.api import view_model
# view_model(p)
# exit(0)
# 4 cases to check against
for i, data in enumerate(ref_data):
p['T'] = data[h_map['Tt']]
p['P'] = data[h_map['Pt']]
p['area'] = data[h_map['A']]
# p['set_static_A.Ps'] = data[h_map['Ps']]
p['W'] = data[h_map['W']]
if i is 5: # supersonic case
p['set_static_A.guess:MN'] = 3.
# print("###################################")
# print(p['T'], p['P'], p['area'], p['W'])
# print("###################################")
p.run_model()
# check outputs
npss_vars = ('Ps', 'Ts', 'MN', 'hs', 'rhos', 'gams', 'V', 'A', 's',
'ht')
Ps, Ts, MN, hs, rhos, gams, V, A, S, ht = tuple(
[data[h_map[v_name]] for v_name in npss_vars])
Ps_computed = p['set_static_A.flow:P']
Ts_computed = p['set_static_A.flow:T']
hs_computed = p['set_static_A.flow:h']
rhos_computed = p['set_static_A.flow:rho']
gams_computed = p['set_static_A.flow:gamma']
V_computed = p['set_static_A.flow:V']
A_computed = p['area']
MN_computed = p['set_static_A.MN']
# I think these area already converted in the file: Ken
# V_SI = cu(V, 'ft/s', 'm/s')
# A_SI = cu(A, 'inch**2', 'm**2')
# print(p['T'], p['P'])
# print("Ps", Ps_computed, Ps)
# print("Ts", Ts_computed, Ts)
# print("gamma", gams_computed, gams)
# print("V", V_computed, V)
# print("A", A_computed, A)
# print("MN", MN_computed, MN)
# print("rhos", rhos_computed, rhos)
# print()
tol = 1.0e-4
assert_rel_error(self, gams_computed, gams, tol)
assert_rel_error(self, MN_computed, MN, tol)
assert_rel_error(self, Ps_computed, Ps, tol)
assert_rel_error(self, Ts_computed, Ts, tol)
assert_rel_error(self, hs_computed, hs, tol)
assert_rel_error(self, rhos_computed, rhos, tol)
assert_rel_error(self, gams_computed, gams, tol)
assert_rel_error(self, V_computed, V, tol)
assert_rel_error(self, A_computed, A, tol)
def test_case_Ps(self):
p = Problem()
indeps = p.model.add_subsystem('indeps',
IndepVarComp(),
promotes=['*'])
indeps.add_output('T', val=518., units='degR')
indeps.add_output('P', val=14.7, units='psi')
indeps.add_output('Ps', val=13.0, units='psi')
indeps.add_output('W', val=1., units='lbm/s')
p.model.add_subsystem('set_total_TP', SetTotal(thermo_data=janaf))
p.model.add_subsystem('set_static_Ps',
SetStatic(mode='Ps', thermo_data=janaf))
p.model.connect('set_total_TP.flow:S', 'set_static_Ps.S')
p.model.connect('set_total_TP.flow:h', 'set_static_Ps.ht')
p.model.connect('T', 'set_total_TP.T')
p.model.connect('P', 'set_total_TP.P')
p.model.connect('Ps', 'set_static_Ps.Ps')
p.model.connect('W', 'set_static_Ps.W')
p.setup(check=False)
p.set_solver_print(level=-1)
# from openmdao.api import view_model
# view_model(p)
# exit()
# 4 cases to check against
for i, data in enumerate(ref_data):
p['T'] = data[h_map['Tt']]
p['P'] = data[h_map['Pt']]
p['Ps'] = data[h_map['Ps']]
p['W'] = data[h_map['W']]
p.run_model()
# check outputs
npss_vars = ('Ps', 'Ts', 'MN', 'hs', 'rhos', 'gams', 'V', 'A', 's',
'ht')
Ps, Ts, MN, hs, rhos, gams, V, A, S, ht = tuple(
[data[h_map[v_name]] for v_name in npss_vars])
Ps_computed = p['set_static_Ps.flow:P']
Ts_computed = p['set_static_Ps.flow:T']
hs_computed = p['set_static_Ps.flow:h']
rhos_computed = p['set_static_Ps.flow:rho']
gams_computed = p['set_static_Ps.flow:gamma']
V_computed = p['set_static_Ps.flow:V']
A_computed = p['set_static_Ps.flow:area']
MN_computed = p['set_static_Ps.flow:MN']
if MN >= .05:
tol = 3e-4
else:
tol = .2
# MN values off for low MN cases don't match well, but NPSS doesn't solve well down there
#
# print(p['T'], p['P'])
# print("Ps", Ps_computed, Ps)
# print("Ts", Ts_computed, Ts)
# print("hs", hs_computed, hs)
# print("gamma", gams_computed, gams)
# print("V", V_computed, V)
# print("A", A_computed, A)
# print("MN", MN_computed, MN)
# print("rhos", rhos_computed, rhos)
# print()
assert_rel_error(self, MN_computed, MN, tol)
assert_rel_error(self, gams_computed, gams, tol)
assert_rel_error(self, Ps_computed, Ps, tol)
assert_rel_error(self, Ts_computed, Ts, tol)
assert_rel_error(self, hs_computed, hs, tol)
assert_rel_error(self, rhos_computed, rhos, tol)
assert_rel_error(self, V_computed, V, tol)
assert_rel_error(self, A_computed, A, tol)
p.check_partials(includes=['set_static_Ps.statics.ps_calc'],
compact_print=True)
def setup(self):
thermo_data = self.options['thermo_data']
inflow_elements = self.options['inflow_elements']
air_fuel_elements = self.options['air_fuel_elements']
design = self.options['design']
statics = self.options['statics']
fuel_type = self.options['fuel_type']
air_fuel_thermo = Thermo(thermo_data, init_reacts=air_fuel_elements)
self.air_fuel_prods = air_fuel_thermo.products
air_thermo = Thermo(thermo_data, init_reacts=inflow_elements)
self.air_prods = air_thermo.products
self.num_air_fuel_prod = len(self.air_fuel_prods)
self.num_air_prod = len(self.air_prods)
# Create combustor flow station
in_flow = FlowIn(fl_name='Fl_I', num_prods=self.num_air_prod)
self.add_subsystem('in_flow',
in_flow,
promotes=['Fl_I:tot:*', 'Fl_I:stat:*'])
# Perform combustor engineering calculations
self.add_subsystem('mix_fuel',
MixFuel(thermo_data=thermo_data,
inflow_elements=inflow_elements,
fuel_type=fuel_type),
promotes=[
'Fl_I:stat:W', 'Fl_I:FAR', 'Fl_I:tot:n',
'Fl_I:tot:h', 'Wfuel', 'Wout'
])
# Pressure loss
prom_in = [('Pt_in', 'Fl_I:tot:P'), 'dPqP']
self.add_subsystem('p_loss', PressureLoss(), promotes_inputs=prom_in)
# Calculate vitiated flow station properties
vit_flow = SetTotal(thermo_data=thermo_data,
mode='h',
init_reacts=air_fuel_elements,
fl_name="Fl_O:tot")
self.add_subsystem('vitiated_flow',
vit_flow,
promotes_outputs=['Fl_O:*'])
self.connect("mix_fuel.mass_avg_h", "vitiated_flow.h")
self.connect("mix_fuel.init_prod_amounts",
"vitiated_flow.init_prod_amounts")
self.connect("p_loss.Pt_out", "vitiated_flow.P")
if statics:
if design:
# Calculate static properties.
out_stat = SetStatic(mode="MN",
thermo_data=thermo_data,
init_reacts=air_fuel_elements,
fl_name="Fl_O:stat")
prom_in = ['MN']
prom_out = ['Fl_O:stat:*']
self.add_subsystem('out_stat',
out_stat,
promotes_inputs=prom_in,
promotes_outputs=prom_out)
self.connect("mix_fuel.init_prod_amounts",
"out_stat.init_prod_amounts")
self.connect('Fl_O:tot:S', 'out_stat.S')
self.connect('Fl_O:tot:h', 'out_stat.ht')
self.connect('Fl_O:tot:P', 'out_stat.guess:Pt')
self.connect('Fl_O:tot:gamma', 'out_stat.guess:gamt')
self.connect('Wout', 'out_stat.W')
else:
# Calculate static properties.
out_stat = SetStatic(mode="area",
thermo_data=thermo_data,
init_reacts=air_fuel_elements,
fl_name="Fl_O:stat")
prom_in = ['area']
prom_out = ['Fl_O:stat:*']
self.add_subsystem('out_stat',
out_stat,
promotes_inputs=prom_in,
promotes_outputs=prom_out)
self.connect("mix_fuel.init_prod_amounts",
"out_stat.init_prod_amounts")
self.connect('Fl_O:tot:S', 'out_stat.S')
self.connect('Fl_O:tot:h', 'out_stat.ht')
self.connect('Fl_O:tot:P', 'out_stat.guess:Pt')
self.connect('Fl_O:tot:gamma', 'out_stat.guess:gamt')
self.connect('Wout', 'out_stat.W')
else:
self.add_subsystem('W_passthru',
PassThrough('Wout',
'Fl_O:stat:W',
1.0,
units="lbm/s"),
promotes=['*'])
self.add_subsystem('FAR_pass_thru',
PassThrough('Fl_I:FAR', 'Fl_O:FAR', 0.0),
promotes=['*'])
def setup(self):
thermo_data = self.options['thermo_data']
elements = self.options['elements']
statics = self.options['statics']
design = self.options['design']
expMN = self.options['expMN']
gas_thermo = species_data.Thermo(thermo_data, init_reacts=elements)
gas_prods = gas_thermo.products
num_prod = len(gas_prods)
# Create inlet flowstation
flow_in = FlowIn(fl_name='Fl_I', num_prods=num_prod)
self.add_subsystem('flow_in',
flow_in,
promotes=['Fl_I:tot:*', 'Fl_I:stat:*'])
if expMN > 1e-10: # Calcluate pressure losses as function of Mach number
if design:
self.add_subsystem(
'dPqP_MN',
MachPressureLossMap(design=design, expMN=expMN),
promotes_inputs=['dPqP', ('MN_in', 'Fl_I:stat:MN')],
promotes_outputs=['s_dPqP'])
else:
self.add_subsystem(
'dPqP_MN',
MachPressureLossMap(design=design, expMN=expMN),
promotes_inputs=['s_dPqP', ('MN_in', 'Fl_I:stat:MN')],
promotes_outputs=['dPqP'])
#Pressure Loss Component
prom_in = [('Pt_in', 'Fl_I:tot:P'), 'dPqP']
self.add_subsystem('p_loss', PressureLoss(), promotes_inputs=prom_in)
# Energy Calc Component
prom_in = [('W_in', 'Fl_I:stat:W'), ('ht_in', 'Fl_I:tot:h'), 'Q_dot']
self.add_subsystem('q_calc', qCalc(), promotes_inputs=prom_in)
# Total Calc
real_flow = SetTotal(thermo_data=thermo_data,
mode='h',
init_reacts=elements,
fl_name="Fl_O:tot")
prom_in = [('init_prod_amounts', 'Fl_I:tot:n')]
self.add_subsystem('real_flow',
real_flow,
promotes_inputs=prom_in,
promotes_outputs=['Fl_O:*'])
self.connect("q_calc.ht_out", "real_flow.h")
self.connect("p_loss.Pt_out", "real_flow.P")
if statics:
if design:
# Calculate static properties
out_stat = SetStatic(mode="MN",
thermo_data=thermo_data,
init_reacts=elements,
fl_name="Fl_O:stat")
prom_in = [('init_prod_amounts', 'Fl_I:tot:n'),
('W', 'Fl_I:stat:W'), 'MN']
prom_out = ['Fl_O:stat:*']
self.add_subsystem('out_stat',
out_stat,
promotes_inputs=prom_in,
promotes_outputs=prom_out)
self.connect('Fl_O:tot:S', 'out_stat.S')
self.connect('Fl_O:tot:h', 'out_stat.ht')
self.connect('Fl_O:tot:P', 'out_stat.guess:Pt')
self.connect('Fl_O:tot:gamma', 'out_stat.guess:gamt')
else:
# Calculate static properties
out_stat = SetStatic(mode="area",
thermo_data=thermo_data,
init_reacts=elements,
fl_name="Fl_O:stat")
prom_in = [('init_prod_amounts', 'Fl_I:tot:n'),
('W', 'Fl_I:stat:W'), 'area']
prom_out = ['Fl_O:stat:*']
self.add_subsystem('out_stat',
out_stat,
promotes_inputs=prom_in,
promotes_outputs=prom_out)
self.connect('Fl_O:tot:S', 'out_stat.S')
self.connect('Fl_O:tot:h', 'out_stat.ht')
self.connect('Fl_O:tot:P', 'out_stat.guess:Pt')
self.connect('Fl_O:tot:gamma', 'out_stat.guess:gamt')
else:
self.add_subsystem('W_passthru',
PassThrough('Fl_I:stat:W',
'Fl_O:stat:W',
1.0,
units="lbm/s"),
promotes=['*'])
self.add_subsystem('FAR_passthru',
PassThrough('Fl_I:FAR', 'Fl_O:FAR', 0.0),
promotes=['*'])
def test_case_MN(self):
p = Problem()
indeps = p.model.add_subsystem('indeps',
IndepVarComp(),
promotes=['*'])
indeps.add_output('T', val=518., units='degR')
indeps.add_output('P', val=14.7, units='psi')
indeps.add_output('W', val=1.5, units='lbm/s')
indeps.add_output('MN', val=1.5, units=None)
p.model.add_subsystem('set_total_TP', SetTotal(thermo_data=janaf))
p.model.add_subsystem('set_static_MN',
SetStatic(mode='MN', thermo_data=janaf))
p.model.connect('T', 'set_total_TP.T')
p.model.connect('P', ['set_total_TP.P', 'set_static_MN.guess:Pt'])
p.model.connect('set_total_TP.flow:S', 'set_static_MN.S')
p.model.connect('set_total_TP.flow:h', 'set_static_MN.ht')
p.model.connect('set_total_TP.flow:gamma', 'set_static_MN.guess:gamt')
p.model.connect('W', 'set_static_MN.W')
p.model.connect('MN', 'set_static_MN.MN')
p.set_solver_print(level=-1)
p.setup(check=False)
# from openmdao.api import view_model
# view_model(p)
# exit()
# 4 cases to check against
for i, data in enumerate(ref_data):
p['T'] = data[h_map['Tt']]
p['P'] = data[h_map['Pt']]
p['MN'] = data[h_map['MN']]
p['W'] = data[h_map['W']]
# p.print_all_convergence()
# p.set_solver_print(level=2)
# print("###################################")
# print(p['T'], p['P'], p['MN'], p['W'])
# print("###################################")
p.run_model()
# check outputs
npss_vars = ('Ps', 'Ts', 'MN', 'hs', 'rhos', 'gams', 'V', 'A', 's',
'ht')
Ps, Ts, MN, hs, rhos, gams, V, A, S, ht = tuple(
[data[h_map[v_name]] for v_name in npss_vars])
Ps_computed = p['set_static_MN.flow:P']
Ts_computed = p['set_static_MN.flow:T']
hs_computed = p['set_static_MN.flow:h']
rhos_computed = p['set_static_MN.flow:rho']
gams_computed = p['set_static_MN.flow:gamma']
V_computed = p['set_static_MN.flow:V']
A_computed = p['set_static_MN.flow:area']
MN_computed = p['set_static_MN.flow:MN']
if MN < 2:
tol = 1e-4
else: # The MN 2.0 case doesn't get as close
tol = 1e-2
# print("foo", p['set_total_TP.flow:T'], p['set_total_TP.flow:P'], p['set_total_TP.flow:gamma'])
# print("Ps", Ps_computed, Ps)
# print("Ts", Ts_computed, Ts)
# print("hs", hs_computed, hs)
# print("gamma", gams_computed, gams)
# print("V", V_computed, V)
# print("A", A_computed, A)
# print("MN", MN_computed, MN)
# print("rhos", rhos_computed, rhos)
# print()
assert_rel_error(self, MN_computed, MN, tol)
assert_rel_error(self, gams_computed, gams, tol)
assert_rel_error(self, Ps_computed, Ps, tol)
assert_rel_error(self, Ts_computed, Ts, tol)
assert_rel_error(self, hs_computed, hs, tol)
assert_rel_error(self, rhos_computed, rhos, tol)
assert_rel_error(self, V_computed, V, tol)
assert_rel_error(self, A_computed, A, tol)
def test_case_Ps(self):
thermo = Thermo(janaf, init_reacts=constants.AIR_MIX)
p = Problem()
p.model.add_subsystem('set_total_TP',
SetTotal(thermo_data=janaf),
promotes=['b0'])
p.model.add_subsystem('set_static_Ps',
SetStatic(mode='Ps', thermo_data=janaf),
promotes=['b0'])
p.model.set_input_defaults('b0', thermo.b0)
p.model.set_input_defaults('set_total_TP.T', val=518., units='degR')
p.model.set_input_defaults('set_total_TP.P', val=14.7, units='psi')
p.model.set_input_defaults('set_static_Ps.Ps', val=13.0, units='psi')
p.model.set_input_defaults('set_static_Ps.W', val=1., units='lbm/s')
p.model.connect('set_total_TP.flow:S', 'set_static_Ps.S')
p.model.connect('set_total_TP.flow:h', 'set_static_Ps.ht')
p.setup(check=False)
p.set_solver_print(level=-1)
# 4 cases to check against
for i, data in enumerate(ref_data):
p['set_total_TP.T'] = data[h_map['Tt']]
p['set_total_TP.P'] = data[h_map['Pt']]
p['set_static_Ps.Ps'] = data[h_map['Ps']]
p['set_static_Ps.W'] = data[h_map['W']]
p.run_model()
# check outputs
npss_vars = ('Ps', 'Ts', 'MN', 'hs', 'rhos', 'gams', 'V', 'A', 's',
'ht')
Ps, Ts, MN, hs, rhos, gams, V, A, S, ht = tuple(
[data[h_map[v_name]] for v_name in npss_vars])
Ps_computed = p['set_static_Ps.flow:P']
Ts_computed = p['set_static_Ps.flow:T']
hs_computed = p['set_static_Ps.flow:h']
rhos_computed = p['set_static_Ps.flow:rho']
gams_computed = p['set_static_Ps.flow:gamma']
V_computed = p['set_static_Ps.flow:V']
A_computed = p['set_static_Ps.flow:area']
MN_computed = p['set_static_Ps.flow:MN']
if MN >= .05:
tol = 3e-4
else:
tol = .2
# MN values off for low MN cases don't match well, but NPSS doesn't solve well down there
assert_near_equal(MN_computed, MN, tol)
assert_near_equal(gams_computed, gams, tol)
assert_near_equal(Ps_computed, Ps, tol)
assert_near_equal(Ts_computed, Ts, tol)
assert_near_equal(hs_computed, hs, tol)
assert_near_equal(rhos_computed, rhos, tol)
assert_near_equal(V_computed, V, tol)
assert_near_equal(A_computed, A, tol)
p.check_partials(includes=['set_static_Ps.statics.ps_calc'],
compact_print=True)