def test_compute_cruise():
""" Tests cruise phase """
# Research independent input value in .xml file
group = Group()
group.add_subsystem("in_flight_cg_variation",
InFlightCGVariation(),
promotes=["*"])
group.add_subsystem("cruise",
_compute_cruise(propulsion_id=ENGINE_WRAPPER),
promotes=["*"])
ivc = get_indep_var_comp(list_inputs(group), __file__, XML_FILE)
ivc.add_output("data:mission:sizing:taxi_out:fuel", 0.50, units="kg")
ivc.add_output("data:mission:sizing:takeoff:fuel", 0.29, units="kg")
ivc.add_output("data:mission:sizing:initial_climb:fuel", 0.07, units="kg")
ivc.add_output("data:mission:sizing:main_route:climb:fuel",
5.56,
units="kg")
ivc.add_output("data:mission:sizing:main_route:climb:distance",
13.2,
units="km")
ivc.add_output("data:mission:sizing:main_route:descent:distance",
0.0,
units="km")
# Run problem and check obtained value(s) is/(are) correct
register_wrappers()
problem = run_system(group, ivc)
fuel_mass = problem.get_val("data:mission:sizing:main_route:cruise:fuel",
units="kg")
assert fuel_mass == pytest.approx(155.003, abs=1e-1)
duration = problem.get_val(
"data:mission:sizing:main_route:cruise:duration", units="h")
assert duration == pytest.approx(5.51, abs=1e-2)
def setUp(self):
model = Group()
ivc = IndepVarComp()
mapdata = SampleMap()
params = mapdata.param_data
x, y, z = params
outs = mapdata.output_data
z = outs[0]
ivc.add_output('x', x['default'], units=x['units'])
ivc.add_output('y', y['default'], units=y['units'])
ivc.add_output('z', z['default'], units=z['units'])
model.add_subsystem('des_vars', ivc, promotes=["*"])
comp = MetaModelStructured(method='slinear', extrapolate=True)
for param in params:
comp.add_input(param['name'], param['default'], param['values'])
for out in outs:
comp.add_output(out['name'], out['default'], out['values'])
model.add_subsystem('comp', comp, promotes=["*"])
self.prob = Problem(model)
self.prob.setup()
self.prob['x'] = 1.0
self.prob['y'] = 0.75
self.prob['z'] = -1.7
def test_compute_descent():
""" Tests descent phase """
# Research independent input value in .xml file
group = Group()
group.add_subsystem("in_flight_cg_variation",
InFlightCGVariation(),
promotes=["*"])
group.add_subsystem("descent",
_compute_descent(propulsion_id=ENGINE_WRAPPER),
promotes=["*"])
ivc = get_indep_var_comp(list_inputs(group), __file__, XML_FILE)
ivc.add_output("data:mission:sizing:taxi_out:fuel", 0.98, units="kg")
ivc.add_output("data:mission:sizing:takeoff:fuel", 0.29, units="kg")
ivc.add_output("data:mission:sizing:initial_climb:fuel", 0.07, units="kg")
ivc.add_output("data:mission:sizing:main_route:climb:fuel",
5.56,
units="kg")
ivc.add_output("data:mission:sizing:main_route:cruise:fuel",
188.05,
units="kg")
# Run problem and check obtained value(s) is/(are) correct
register_wrappers()
problem = run_system(group, ivc)
fuel_mass = problem.get_val("data:mission:sizing:main_route:descent:fuel",
units="kg")
assert fuel_mass == pytest.approx(0.863, abs=1e-2)
distance = problem.get_val(
"data:mission:sizing:main_route:descent:distance",
units="m") / 1000 # conversion to km
assert distance == pytest.approx(81.255, abs=1e-2)
duration = problem.get_val(
"data:mission:sizing:main_route:descent:duration", units="min")
assert duration == pytest.approx(28.277, abs=1e-2)
def setUp(self):
model = Group()
ivc = IndepVarComp()
mapdata = SampleMap()
params = mapdata.param_data
x, y, z = params
outs = mapdata.output_data
z = outs[0]
ivc.add_output('x', x['default'], units=x['units'])
ivc.add_output('y', y['default'], units=y['units'])
ivc.add_output('z', z['default'], units=z['units'])
model.add_subsystem('des_vars', ivc, promotes=["*"])
comp = MetaModelStructured(method='slinear', extrapolate=True)
for param in params:
comp.add_input(param['name'], param['default'], param['values'])
for out in outs:
comp.add_output(out['name'], out['default'], out['values'])
model.add_subsystem('comp', comp, promotes=["*"])
self.prob = Problem(model)
self.prob.setup()
self.prob['x'] = 1.0
self.prob['y'] = 0.75
self.prob['z'] = -1.7
def test_compute_climb():
""" Tests climb phase """
# Run problem and check obtained value(s) is/(are) correct
group = Group()
group.add_subsystem("in_flight_cg_variation",
InFlightCGVariation(),
promotes=["*"])
group.add_subsystem("descent",
_compute_climb(propulsion_id=ENGINE_WRAPPER),
promotes=["*"])
ivc = get_indep_var_comp(list_inputs(group), __file__, XML_FILE)
ivc.add_output("data:mission:sizing:taxi_out:fuel", 0.50, units="kg")
ivc.add_output("data:mission:sizing:takeoff:fuel", 0.29, units="kg")
ivc.add_output("data:mission:sizing:initial_climb:fuel", 0.07, units="kg")
register_wrappers()
problem = run_system(group, ivc)
v_cas = problem.get_val("data:mission:sizing:main_route:climb:v_cas",
units="kn")
assert v_cas == pytest.approx(71.5, abs=1)
fuel_mass = problem.get_val("data:mission:sizing:main_route:climb:fuel",
units="kg")
assert fuel_mass == pytest.approx(5.107, abs=1e-1)
distance = problem.get_val("data:mission:sizing:main_route:climb:distance",
units="m") / 1000.0 # conversion to km
assert distance == pytest.approx(16.648, abs=1e-2)
duration = problem.get_val("data:mission:sizing:main_route:climb:duration",
units="min")
assert duration == pytest.approx(5.645, abs=1e-2)
def test_polar_low_speed():
"""Tests ComputePolar"""
# Need to plug Cd modules, Reynolds and Oswald
input_list = [
"data:aerodynamics:aircraft:takeoff:mach",
"data:geometry:wing:area",
"data:geometry:wing:span",
"data:geometry:fuselage:maximum_height",
"data:geometry:fuselage:maximum_width",
"data:geometry:wing:root:chord",
"data:geometry:wing:tip:chord",
"data:geometry:wing:sweep_25",
"data:geometry:wing:thickness_ratio",
"data:geometry:wing:wetted_area",
"data:geometry:wing:MAC:length",
"data:geometry:fuselage:length",
"data:geometry:fuselage:wetted_area",
"data:geometry:horizontal_tail:MAC:length",
"data:geometry:horizontal_tail:thickness_ratio",
"data:geometry:horizontal_tail:sweep_25",
"data:geometry:horizontal_tail:wetted_area",
"data:geometry:vertical_tail:MAC:length",
"data:geometry:vertical_tail:thickness_ratio",
"data:geometry:vertical_tail:sweep_25",
"data:geometry:vertical_tail:wetted_area",
"data:geometry:propulsion:pylon:length",
"data:geometry:propulsion:nacelle:length",
"data:geometry:propulsion:pylon:wetted_area",
"data:geometry:propulsion:nacelle:wetted_area",
"data:geometry:propulsion:engine:count",
"data:geometry:propulsion:fan:length",
"data:geometry:aircraft:wetted_area",
"tuning:aerodynamics:aircraft:cruise:CD:k",
"tuning:aerodynamics:aircraft:cruise:CD:offset",
"tuning:aerodynamics:aircraft:cruise:CD:winglet_effect:k",
"tuning:aerodynamics:aircraft:cruise:CD:winglet_effect:offset",
]
group = Group()
group.add_subsystem("reynolds", ComputeReynolds(low_speed_aero=True), promotes=["*"])
group.add_subsystem("oswald", OswaldCoefficient(low_speed_aero=True), promotes=["*"])
group.add_subsystem(
"induced_drag_coeff", InducedDragCoefficient(low_speed_aero=True), promotes=["*"]
)
group.add_subsystem("cd0", CD0(low_speed_aero=True), promotes=["*"])
group.add_subsystem("cd_trim", CdTrim(low_speed_aero=True), promotes=["*"])
group.add_subsystem("polar", ComputePolar(polar_type=PolarType.LOW_SPEED), promotes=["*"])
ivc = get_indep_var_comp(input_list)
ivc.add_output("data:aerodynamics:aircraft:low_speed:CL", np.arange(0.0, 1.5, 0.01))
problem = run_system(group, ivc)
cd = problem["data:aerodynamics:aircraft:low_speed:CD"]
cl = problem["data:aerodynamics:aircraft:low_speed:CL"]
assert cd[cl == 0.5] == approx(0.033441, abs=1e-5)
assert cd[cl == 1.0] == approx(0.077523, abs=1e-5)
def test_shape(self):
import numpy as np
from openmdao.api import Group, Problem, IndepVarComp
from openmdao.components.meta_model_structured import MetaModelStructured
# create input param training data, of sizes 25, 5, and 10 points resp.
p1 = np.linspace(0, 100, 25)
p2 = np.linspace(-10, 10, 5)
p3 = np.linspace(0, 1, 10)
# can use meshgrid to create a 3D array of test data
P1, P2, P3 = np.meshgrid(p1, p2, p3, indexing='ij')
f = np.sqrt(P1) + P2 * P3
# verify the shape matches the order and size of the input params
print(f.shape)
# Create regular grid interpolator instance
interp = MetaModelStructured(method='cubic')
interp.add_input('p1', 0.5, p1)
interp.add_input('p2', 0.0, p2)
interp.add_input('p3', 3.14, p3)
interp.add_output('f', 0.0, f)
# Set up the OpenMDAO model
model = Group()
model.add_subsystem('comp', interp, promotes=["*"])
prob = Problem(model)
prob.setup()
# set inputs
prob['p1'] = 55.12
prob['p2'] = -2.14
prob['p3'] = 0.323
prob.run_model()
computed = prob['f']
actual = 6.73306472
assert_almost_equal(computed, actual)
# we can verify all gradients by checking against finit-difference
prob.check_partials(compact_print=True)
def test_training_derivatives(self):
import numpy as np
from openmdao.api import Group, Problem, IndepVarComp
from openmdao.components.meta_model_structured import MetaModelStructured
# create input param training data, of sizes 25, 5, and 10 points resp.
p1 = np.linspace(0, 100, 25)
p2 = np.linspace(-10, 10, 5)
p3 = np.linspace(0, 1, 10)
# can use meshgrid to create a 3D array of test data
P1, P2, P3 = np.meshgrid(p1, p2, p3, indexing='ij')
f = np.sqrt(P1) + P2 * P3
# verify the shape matches the order and size of the input params
print(f.shape)
# Create regular grid interpolator instance
interp = MetaModelStructured(method='cubic',
training_data_gradients=True)
interp.add_input('p1', 0.5, p1)
interp.add_input('p2', 0.0, p2)
interp.add_input('p3', 3.14, p3)
interp.add_output('f', 0.0, f)
# Set up the OpenMDAO model
model = Group()
model.add_subsystem('comp', interp, promotes=["*"])
prob = Problem(model)
prob.setup()
# set inputs
prob['p1'] = 55.12
prob['p2'] = -2.14
prob['p3'] = 0.323
prob.run_model()
computed = prob['f']
actual = 6.73306472
assert_almost_equal(computed, actual)
# we can verify all gradients by checking against finit-difference
prob.check_partials(compact_print=True)
def test_meta_model_structured_deprecated(self):
# run same test as above, only with the deprecated component,
# to ensure we get the warning and the correct answer.
# self-contained, to be removed when class name goes away.
import numpy as np
from openmdao.api import Group, Problem, IndepVarComp
from openmdao.components.meta_model_structured_comp import MetaModelStructured # deprecated
import warnings
with warnings.catch_warnings(record=True) as w:
xor_interp = MetaModelStructured(method='slinear')
self.assertEqual(len(w), 1)
self.assertTrue(issubclass(w[0].category, DeprecationWarning))
self.assertEqual(str(w[0].message), "'MetaModelStructured' has been deprecated. Use "
"'MetaModelStructuredComp' instead.")
# set up inputs and outputs
xor_interp.add_input('x', 0.0, training_data=np.array([0.0, 1.0]), units=None)
xor_interp.add_input('y', 1.0, training_data=np.array([0.0, 1.0]), units=None)
xor_interp.add_output('xor', 1.0, training_data=np.array([[0.0, 1.0], [1.0, 0.0]]), units=None)
# Set up the OpenMDAO model
model = Group()
ivc = IndepVarComp()
ivc.add_output('x', 0.0)
ivc.add_output('y', 1.0)
model.add_subsystem('ivc', ivc, promotes=["*"])
model.add_subsystem('comp', xor_interp, promotes=["*"])
prob = Problem(model)
prob.setup()
# Now test out a 'fuzzy' XOR
prob['x'] = 0.9
prob['y'] = 0.001242
prob.run_model()
computed = prob['xor']
actual = 0.8990064
assert_almost_equal(computed, actual)
# we can verify all gradients by checking against finite-difference
prob.check_partials(compact_print=True)
def test_training_gradient(self):
model = Group()
ivc = IndepVarComp()
mapdata = SampleMap()
params = mapdata.param_data
outs = mapdata.output_data
ivc.add_output('x', np.array([-0.3, 0.7, 1.2]))
ivc.add_output('y', np.array([0.14, 0.313, 1.41]))
ivc.add_output('z', np.array([-2.11, -1.2, 2.01]))
ivc.add_output('f_train', outs[0]['values'])
ivc.add_output('g_train', outs[1]['values'])
comp = MetaModelStructured(training_data_gradients=True,
method='cubic',
num_nodes=3)
for param in params:
comp.add_input(param['name'], param['default'], param['values'])
for out in outs:
comp.add_output(out['name'], out['default'], out['values'])
model.add_subsystem('ivc', ivc, promotes=["*"])
model.add_subsystem('comp',
comp,
promotes=["*"])
prob = Problem(model)
prob.setup()
prob.run_model()
val0 = np.array([ 50.26787317, 49.76106232, 19.66117913])
val1 = np.array([-32.62094041, -31.67449135, -27.46959668])
tol = 1e-5
assert_rel_error(self, prob['f'], val0, tol)
assert_rel_error(self, prob['g'], val1, tol)
self.run_and_check_derivs(prob)
def test_training_gradient(self):
model = Group()
ivc = IndepVarComp()
mapdata = SampleMap()
params = mapdata.param_data
outs = mapdata.output_data
ivc.add_output('x', np.array([-0.3, 0.7, 1.2]))
ivc.add_output('y', np.array([0.14, 0.313, 1.41]))
ivc.add_output('z', np.array([-2.11, -1.2, 2.01]))
ivc.add_output('f_train', outs[0]['values'])
ivc.add_output('g_train', outs[1]['values'])
comp = MetaModelStructuredComp(training_data_gradients=True,
method='cubic',
num_nodes=3)
for param in params:
comp.add_input(param['name'], param['default'], param['values'])
for out in outs:
comp.add_output(out['name'], out['default'], out['values'])
model.add_subsystem('ivc', ivc, promotes=["*"])
model.add_subsystem('comp',
comp,
promotes=["*"])
prob = Problem(model)
prob.setup()
prob.run_model()
val0 = np.array([ 50.26787317, 49.76106232, 19.66117913])
val1 = np.array([-32.62094041, -31.67449135, -27.46959668])
tol = 1e-5
assert_rel_error(self, prob['f'], val0, tol)
assert_rel_error(self, prob['g'], val1, tol)
self.run_and_check_derivs(prob)
def test_raise_out_of_bounds_error(self):
model = Group()
ivc = IndepVarComp()
mapdata = SampleMap()
params = mapdata.param_data
x, y, z = params
outs = mapdata.output_data
z = outs[0]
ivc.add_output('x', x['default'], units=x['units'])
ivc.add_output('y', y['default'], units=y['units'])
ivc.add_output('z', z['default'], units=z['units'])
model.add_subsystem('des_vars', ivc, promotes=["*"])
# Need to make sure extrapolate is False for bounds to be checked
comp = MetaModelStructured(method='slinear', extrapolate=False)
for param in params:
comp.add_input(param['name'], param['default'], param['values'])
for out in outs:
comp.add_output(out['name'], out['default'], out['values'])
model.add_subsystem('comp', comp, promotes=["*"])
self.prob = Problem(model)
self.prob.setup()
self.prob['x'] = 1.0
self.prob['y'] = 0.75
self.prob['z'] = 9.0 # intentionally set to be out of bounds
# The interpolating output name is given as a regexp because the exception could
# happen with f or g first. The order those are evaluated comes from the keys of
# dict so no guarantee on the order except for Python 3.6 !
msg = "Error interpolating output '[f|g]' in 'comp' " + "because input 'comp.z' was " \
"out of bounds \('.*', '.*'\) with value '9.0'"
with assertRaisesRegex(self, ValueError, msg):
self.run_and_check_derivs(self.prob)
def test_raise_out_of_bounds_error(self):
model = Group()
ivc = IndepVarComp()
mapdata = SampleMap()
params = mapdata.param_data
x, y, z = params
outs = mapdata.output_data
z = outs[0]
ivc.add_output('x', x['default'], units=x['units'])
ivc.add_output('y', y['default'], units=y['units'])
ivc.add_output('z', z['default'], units=z['units'])
model.add_subsystem('des_vars', ivc, promotes=["*"])
# Need to make sure extrapolate is False for bounds to be checked
comp = MetaModelStructured(method='slinear', extrapolate=False)
for param in params:
comp.add_input(param['name'], param['default'], param['values'])
for out in outs:
comp.add_output(out['name'], out['default'], out['values'])
model.add_subsystem('comp', comp, promotes=["*"])
self.prob = Problem(model)
self.prob.setup()
self.prob['x'] = 1.0
self.prob['y'] = 0.75
self.prob['z'] = 9.0 # intentionally set to be out of bounds
# The interpolating output name is given as a regexp because the exception could
# happen with f or g first. The order those are evaluated comes from the keys of
# dict so no guarantee on the order except for Python 3.6 !
msg = "Error interpolating output '[f|g]' in 'comp' " + "because input 'comp.z' was " \
"out of bounds \('.*', '.*'\) with value '9.0'"
with assertRaisesRegex(self, ValueError, msg):
self.run_and_check_derivs(self.prob)
def test_xor(self):
import numpy as np
from openmdao.api import Group, Problem, IndepVarComp
from openmdao.components.meta_model_structured import MetaModelStructured
# Create regular grid interpolator instance
xor_interp = MetaModelStructured(method='slinear')
# set up inputs and outputs
xor_interp.add_input('x', 0.0, np.array([0.0, 1.0]), units=None)
xor_interp.add_input('y', 1.0, np.array([0.0, 1.0]), units=None)
xor_interp.add_output('xor',
1.0,
np.array([[0.0, 1.0], [1.0, 0.0]]),
units=None)
# Set up the OpenMDAO model
model = Group()
ivc = IndepVarComp()
ivc.add_output('x', 0.0)
ivc.add_output('y', 1.0)
model.add_subsystem('ivc', ivc, promotes=["*"])
model.add_subsystem('comp', xor_interp, promotes=["*"])
prob = Problem(model)
prob.setup()
# Now test out a 'fuzzy' XOR
prob['x'] = 0.9
prob['y'] = 0.001242
prob.run_model()
computed = prob['xor']
actual = 0.8990064
assert_almost_equal(computed, actual)
# we can verify all gradients by checking against finit-difference
prob.check_partials(compact_print=True)
def test_xor(self):
import numpy as np
from openmdao.api import Group, Problem, IndepVarComp
from openmdao.components.meta_model_structured import MetaModelStructured
# Create regular grid interpolator instance
xor_interp = MetaModelStructured(method='slinear')
# set up inputs and outputs
xor_interp.add_input('x', 0.0, np.array([0.0, 1.0]), units=None)
xor_interp.add_input('y', 1.0, np.array([0.0, 1.0]), units=None)
xor_interp.add_output('xor', 1.0, np.array([[0.0, 1.0], [1.0, 0.0]]), units=None)
# Set up the OpenMDAO model
model = Group()
ivc = IndepVarComp()
ivc.add_output('x', 0.0)
ivc.add_output('y', 1.0)
model.add_subsystem('ivc', ivc, promotes=["*"])
model.add_subsystem('comp', xor_interp, promotes=["*"])
prob = Problem(model)
prob.setup()
# Now test out a 'fuzzy' XOR
prob['x'] = 0.9
prob['y'] = 0.001242
prob.run_model()
computed = prob['xor']
actual = 0.8990064
assert_almost_equal(computed, actual)
# we can verify all gradients by checking against finit-difference
prob.check_partials(compact_print=True)
x = inputs['x']
y = inputs['y']
outputs['f_xy'] = (x-3.0)**2 + x*y + (y+4.0)**2 - 3.0
if __name__ == "__main__":
from openmdao.core.problem import Problem
from openmdao.core.group import Group
from openmdao.core.indepvarcomp import IndepVarComp
model = Group()
ivc = IndepVarComp()
ivc.add_output('x', 3.0)
ivc.add_output('y', -4.0)
model.add_subsystem('des_vars', ivc)
model.add_subsystem('parab_comp', Paraboloid())
model.connect('des_vars.x', 'parab_comp.x')
model.connect('des_vars.y', 'parab_comp.y')
prob = Problem(model)
prob.setup()
prob.run_model()
print(prob['parab_comp.f_xy'])
prob['des_vars.x'] = 5.0
prob['des_vars.y'] = -2.0
prob.run_model()
print(prob['parab_comp.f_xy'])
Bfw0 = 24506700.5989
# spline parameterization
nspline = 6
rspline = np.linspace(Rhub, Rtip, nspline)
ivc.add_output('rspline', rspline) # starting point
chordspline = np.interp(rspline, r, initial['planform']['Chord'][1:-1])
thetaspline = np.interp(rspline, r, initial['planform']['Twist'][1:-1])
tcspline = np.interp(rspline, r, tcinitial)
ivc.add_output('chordspline', chordspline) # starting point
ivc.add_output('thetaspline', thetaspline) # starting point
tcspline[0] = 1.0 # must be cylinder at root
ivc.add_output('tcspline', tcspline) # starting point
model = Group()
model.add_subsystem('inputs', ivc, promotes=['*'])
model.add_subsystem('spline', Spline(), promotes=['*'])
model.add_subsystem('blending', DetermineBlending(), promotes=['*'])
model.add_subsystem('ccblade', CCBlade(), promotes=['*'])
model.add_subsystem('thickness', ThicknessMargin(), promotes=['*'])
model.add_subsystem('aep', AEP(), promotes=['*'])
prob = Problem(model)
# prob.setup()
# prob.check_partials(compact_print=True)
# # ------------ run actual optmization -----
# prob.driver = pyOptSparseDriver()
# prob.driver.options['optimizer'] = "SNOPT"
def test_polar_high_speed():
""" Tests ComputePolar """
# Need to plug Cd modules, Reynolds and Oswald
input_list = [
"tuning:aerodynamics:aircraft:cruise:CD:k",
"tuning:aerodynamics:aircraft:cruise:CD:offset",
"tuning:aerodynamics:aircraft:cruise:CD:winglet_effect:k",
"tuning:aerodynamics:aircraft:cruise:CD:winglet_effect:offset",
"data:geometry:fuselage:maximum_height",
"data:geometry:fuselage:length",
"data:geometry:fuselage:wetted_area",
"data:geometry:fuselage:maximum_width",
"data:geometry:wing:area",
"data:geometry:horizontal_tail:MAC:length",
"data:geometry:horizontal_tail:sweep_25",
"data:geometry:horizontal_tail:thickness_ratio",
"data:geometry:horizontal_tail:wetted_area",
"data:geometry:wing:area",
"data:geometry:propulsion:engine:count",
"data:geometry:propulsion:fan:length",
"data:geometry:propulsion:nacelle:length",
"data:geometry:propulsion:nacelle:wetted_area",
"data:geometry:propulsion:pylon:length",
"data:geometry:propulsion:pylon:wetted_area",
"data:geometry:wing:area",
"data:geometry:aircraft:wetted_area",
"data:geometry:vertical_tail:MAC:length",
"data:geometry:vertical_tail:sweep_25",
"data:geometry:vertical_tail:thickness_ratio",
"data:geometry:vertical_tail:wetted_area",
"data:geometry:wing:MAC:length",
"data:geometry:wing:sweep_25",
"data:geometry:wing:thickness_ratio",
"data:geometry:wing:wetted_area",
"data:geometry:wing:span",
"data:geometry:wing:root:chord",
"data:geometry:wing:tip:chord",
"data:TLAR:cruise_mach",
"data:mission:sizing:main_route:cruise:altitude",
]
group = Group()
group.add_subsystem("reynolds", ComputeReynolds(), promotes=["*"])
group.add_subsystem("oswald", OswaldCoefficient(), promotes=["*"])
group.add_subsystem("cd0", CD0(), promotes=["*"])
group.add_subsystem("cd_compressibility",
CdCompressibility(),
promotes=["*"])
group.add_subsystem("cd_trim", CdTrim(), promotes=["*"])
group.add_subsystem("polar", ComputePolar(), promotes=["*"])
ivc = get_indep_var_comp(input_list)
ivc.add_output("data:aerodynamics:aircraft:cruise:CL",
np.arange(0.0, 1.5, 0.01))
problem = run_system(group, ivc)
cd = problem["data:aerodynamics:aircraft:cruise:CD"]
cl = problem["data:aerodynamics:aircraft:cruise:CL"]
assert cd[cl == 0.0] == approx(0.02102, abs=1e-5)
assert cd[cl == 0.2] == approx(0.02281, abs=1e-5)
assert cd[cl == 0.42] == approx(0.02977, abs=1e-5)
assert cd[cl == 0.85] == approx(0.07062, abs=1e-5)
assert problem["data:aerodynamics:aircraft:cruise:optimal_CL"] == approx(
0.51, abs=1e-3)
assert problem["data:aerodynamics:aircraft:cruise:optimal_CD"] == approx(
0.03487, abs=1e-5)
y = inputs['y']
partials['f_xy', 'x'] = 2.0 * x - 6.0 + y
partials['f_xy', 'y'] = 2.0 * y + 8.0 + x
if __name__ == "__main__":
from openmdao.core.problem import Problem
from openmdao.core.group import Group
from openmdao.core.indepvarcomp import IndepVarComp
model = Group()
ivc = IndepVarComp()
ivc.add_output('x', 3.0)
ivc.add_output('y', -4.0)
model.add_subsystem('des_vars', ivc)
model.add_subsystem('parab_comp', Paraboloid())
model.connect('des_vars.x', 'parab_comp.x')
model.connect('des_vars.y', 'parab_comp.y')
prob = Problem(model)
prob.setup()
prob.run_model()
print(prob['parab_comp.f_xy'])
prob['des_vars.x'] = 5.0
prob['des_vars.y'] = -2.0
prob.run_model()
print(prob['parab_comp.f_xy'])