def read(self):
beamReader = FluentCase(self.beamCaseFile)
beamReader.read()
print 'beam mesh read in. Done!'
print '------------------------------------------------------------'
self.solidMeshes = beamReader.getMeshList()
self.geomFields = models.GeomFields('geom')
self.solidMetricsCalculator = models.MeshMetricsCalculatorA(
self.geomFields, self.solidMeshes)
self.solidMetricsCalculator.init()
fluidReader = FluentCase(self.fluidCaseFile)
fluidReader.read()
print 'fluid mesh read in. Done!'
print '------------------------------------------------------------'
self.fluidMeshes = fluidReader.getMeshList()
self.fluidMeshesNew = self.fluidMeshes
self.fluidMetricsCalculator = models.MeshMetricsCalculatorA(
self.geomFields, self.fluidMeshes)
self.fluidMetricsCalculator.init()
self.solidBoundaryMeshes = [
m.extrude(1, self.beam_thickness, True) for m in self.solidMeshes
]
self.solidBoundaryMetricsCalculator = models.MeshMetricsCalculatorA(
self.geomFields, self.solidBoundaryMeshes)
self.solidBoundaryMetricsCalculator.init()
def __init__(self, beamMesh, backgroundMesh, beamThickness, initialGap):
## Read in 2d Solid Mesh
self.beam_thickness = beamThickness
self.Gap = initialGap
beamReader = FluentCase(beamMesh)
beamReader.read()
print "read solid mesh"
self.solidMeshes = beamReader.getMeshList()
self.geomFields = models.GeomFields('geom')
self.solidMetricsCalculator = models.MeshMetricsCalculatorA(
self.geomFields, self.solidMeshes)
self.solidMetricsCalculator.init()
## Define plate and deformation model
self.plateFields = models.PlateFields('plate')
self.pmodel = models.PlateModelA(self.geomFields, self.plateFields,
self.solidMeshes)
self.dmodel = models.PlateDeformationModelA(self.geomFields,
self.plateFields,
self.solidMeshes)
bcMap = self.pmodel.getBCMap()
## Apply a default Boundary Condition
#for i, bc in bcMap.iteritems():
#bc.bcType = 'SpecifiedTraction'
## Read in 3d Background Mesh
fluidReader = FluentCase(backgroundMesh)
fluidReader.read()
self.fluidMeshes = fluidReader.getMeshList()
self.fluidMetricsCalculator = models.MeshMetricsCalculatorA(
self.geomFields, self.fluidMeshes)
self.fluidMetricsCalculator.init()
## Define electric model
self.elecFields = models.ElectricFields('elec')
self.emodel = models.ElectricModelA(self.geomFields, self.elecFields,
self.fluidMeshes)
bcMap = self.emodel.getBCMap()
## Apply Default boundary conditions
for i, bc in bcMap.iteritems():
bc.bcType = "Symmetry"
self.solidBoundaryMeshes = [
m.extrude(1, beamThickness, True) for m in self.solidMeshes
]
self.solidBoundaryMetricsCalculator = models.MeshMetricsCalculatorA(
self.geomFields, self.solidBoundaryMeshes)
self.solidBoundaryMetricsCalculator.init()
part_mesh_fluid.isDebug(0)
part_mesh_fluid.partition()
part_mesh_fluid.mesh()
fluidMeshes = part_mesh_fluid.meshList()
if not MPI.COMM_WORLD.Get_rank():
print "partition is done for Fluid Mesh"
if options.time:
solver_start = zeros(1, dtype='d')
solver_end = zeros(1, dtype='d')
solver_time = zeros(1, dtype='d')
solver_maxtime = zeros(1, dtype='d')
solver_mintime = zeros(1, dtype='d')
solver_start[0] = MPI.Wtime()
geomFields = models.GeomFields('geom')
fluidMetricsCalculator = models.MeshMetricsCalculatorA(geomFields, fluidMeshes)
fluidMetricsCalculator.init()
solidBoundaryMeshes = [m.extractBoundaryMesh() for m in solidMeshes]
solidBoundaryMetricsCalculator = models.MeshMetricsCalculatorA(
geomFields, solidBoundaryMeshes)
solidBoundaryMetricsCalculator.init()
flowFields = models.FlowFields('flow')
fmodel = models.FlowModelA(geomFields, flowFields, fluidMeshes)
fluidWalls = [3, 4]
fluidInlet = [5]
fluidOutlet = [6]
def RunSim(xmax,ymax,zmax,imax,jmax,kmax,old_values,laser_file):
#pdb.set_trace()
mesh = generateBoxMesh(xmax, ymax, zmax, imax, jmax, kmax)
meshes = (mesh,)
geomFields = models.GeomFields('geom')
metricsCalculator = models.MeshMetricsCalculatorA(geomFields,meshes)
metricsCalculator.init()
thermalFields = models.ThermalFields('temperature')
tmodel = models.ThermalModelA(geomFields,thermalFields,meshes)
bcmap = tmodel.getBCMap()
vcmap = tmodel.getVCMap()
global time
global numTimeSteps
global curr_cycle
global v_laser
global laser_pos
global laser_pos_next
global int_time
vcZone = vcmap[mesh.getID()]
# Set boundary conditions and material properties
vcZone['thermalConductivity'] = thermalConductivity
vcZone['density'] = density
# vcZone['specificHeat'] = 1546
xmin_id = 1
xmax_id = 2
ymin_id = 3
ymax_id = 4
zmin_id = 5
zmax_id = 6
bc_xmin = bcmap[xmin_id]
bc_xmax = bcmap[xmax_id]
bc_ymin = bcmap[ymin_id]
bc_ymax = bcmap[ymax_id]
bc_zmin = bcmap[zmin_id]
bc_zmax = bcmap[zmax_id]
bc_zmax.bcType = 'Mixed'
bc_zmax.setVar('farFieldTemperature',initTemp)
bc_zmax.setVar('surfaceEmissivity',-1.0)
bc_zmax.setVar('convectiveCoefficient',-30)
bc_zmin.bcType = 'Convective'
bc_zmin.setVar('farFieldTemperature',initTemp)
bc_zmin.setVar('convectiveCoefficient',-1332)
# bc_zmin.setVar('specifiedHeatFlux',0)
bc_ymin.bcType = 'SpecifiedTemperature'
bc_ymin.setVar('specifiedTemperature',298.0)
bc_ymax.bcType = 'SpecifiedTemperature'
bc_ymax.setVar('specifiedTemperature',298.0)
bc_xmin.bcType = 'SpecifiedTemperature'
bc_xmin.setVar('specifiedTemperature',298.0)
bc_xmax.bcType = 'SpecifiedTemperature'
bc_xmax.setVar('specifiedTemperature',298.0)
# Set solver options
toptions = tmodel.getOptions()
toptions.transient = True
toptions.enthalpyModel = True
toptions.polynomialCp = True
toptions['latentHeat'] = latentHeat
toptions['solidTemp'] = solidTemp
toptions['liquidTemp'] = liquidTemp
toptions.cpFile = specificHeatFile
toptions.setVar('initialTemperature', initTemp)
pc = fvmbaseExt.AMG()
pc.verbosity = 0
defSolver = fvmbaseExt.BCGStab()
defSolver.preconditioner = pc
defSolver.relativeTolerance = 1.e-10
defSolver.absoluteTolerance = 1.e-10
defSolver.nMaxIteractions = 1000
defSolver.verbosity = 0
toptions.linearSolver = defSolver
tmodel.init()
cells = mesh.getCells()
ncells = cells.getSelfCount()
old_ncells, old_temp, old_tempN1, old_enth, old_enthN1, old_enthInv, old_dHdT, old_meltFrac = old_values
temp = thermalFields.temperature
tempN1 = thermalFields.temperatureN1
enth = thermalFields.enthalpy
enthN1 = thermalFields.enthalpyN1
enthInv = thermalFields.enthalpyInverse
dHdT = thermalFields.dHdT
meltFrac = thermalFields.meltFrac
temp = temp[cells].asNumPyArray()
tempN1 = tempN1[cells].asNumPyArray()
enth = enth[cells].asNumPyArray()
enthN1 = enthN1[cells].asNumPyArray()
enthInv = enthInv[cells].asNumPyArray()
dHdT = dHdT[cells].asNumPyArray()
meltFrac = meltFrac[cells].asNumPyArray()
##recover data from previous mesh if it exists
if(old_ncells != 0):
for c in range(old_ncells):
temp[c] = old_temp[c]
tempN1[c] = old_tempN1[c]
enth[c] = old_enth[c]
enthN1[c] = old_enthN1[c]
enthInv[c] = old_enthInv[c]
dHdT[c] = old_dHdT[c]
meltFrac[c] = old_meltFrac[c]
nodes=mesh.getCellNodes()
NodeCoord=mesh.getNodeCoordinates().asNumPyArray()
CellCoord=geomFields.coordinate[cells].asNumPyArray()
laser_width = 3*laser_diam/4/2.146
laser_path = open(laser_file,'r')
if (curr_cycle == -1):
curr_cycle = 1
line = laser_path.readline()
words = line.split()
if(time != float(words[0])):
raise NameError('Time does not match start time in laser_file')
laser_pos.x = float(words[1])
laser_pos.y = float(words[2])
laser_power = float(words[3])
line = laser_path.readline()
words = line.split()
int_time = float(words[0])-time
v_laser = [(float(words[1])-laser_pos.x)/int_time,(float(words[2])-laser_pos.y)/int_time]
laser_power_next = float(words[3])
else:
line = laser_path.readline()
words = line.split()
laser_power = float(words[3])
if (float(words[0]) > time):
raise NameError('Current time not within laser_file for restart')
else:
while(True):
line = laser_path.readline()
words = line.split()
if (float(words[0]) > time):
int_time = float(words[0])-time
v_laser = [(float(words[1])-laser_pos.x)/int_time,(float(words[2])-laser_pos.y)/int_time]
laser_power_next = float(words[3])
break
else:
laser_power = float(words[3])
f = open('laser_position','a')
f.write(str(time) + ' ' + str(numTimeSteps) + ' ' + str(laser_pos.x) + ' ' + str(laser_pos.y) + '\n')
MeltFracField = thermalFields.meltFrac
meltFracArray = MeltFracField[cells].asNumPyArray()
for c in range(ncells):
lim = getNodeCoords(c,CellCoord,NodeCoord,nodes)
if(lim[0] >= 0.01) and (lim[1] <= 0.09) and (lim[2] >= 0.01) and (lim[3] <= 0.09) and (lim[5] <= 0.0001):
meltFracArray[c] = 1.0
else:
meltFracArray[c] = 0.0
while(True):
#find the timestep.
if (int_time <= maxTimeStep):
timeStep = int_time
else:
timeStep = maxTimeStep
laser_pos_next.x = laser_pos.x+v_laser[0]*timeStep
laser_pos_next.y = laser_pos.y+v_laser[1]*timeStep
int_time = int_time - timeStep
toptions.setVar('timeStep',timeStep)
print "Current Time: " + str(time)
print "Time Step: " + str(timeStep)
laser_rect = getLaserRect(laser_pos,laser_pos_next,v_laser,laser_width)
SourceField = thermalFields.source
sourceArray = SourceField[cells].asNumPyArray()
CondField = thermalFields.conductivity
condArray = CondField[cells].asNumPyArray()
TempField = thermalFields.temperature
tempArray = TempField[cells].asNumPyArray()
MeltFracField = thermalFields.meltFrac
meltFracArray = MeltFracField[cells].asNumPyArray()
for c in range(ncells):
#set source term
lim = getNodeCoords(c,CellCoord,NodeCoord,nodes)
if ((lim[5]-zlen) < -1/beta*math.log(0.01*beta/(1-R))):
source = 0
elif (cellLaserOverlap(lim,laser_pos,laser_pos_next,laser_width,
laser_rect)):
ts = getTimes(lim,laser_pos,laser_width,v_laser,timeStep)
if (len(ts) == 2):
source = GaussLegendreQuadrature(laserSource,xs,Ws,ts[0],ts[1],lim,laser_pos,laser_power,v_laser)/timeStep
elif (len(ts) == 0):
source = 0.0
else:
raise NameError('Bad number of solutions to laser overlap cell ' + str(c))
else:
source = 0
sourceArray[c] = source
##Set conductivity based on previous temperature
solidCond = condFunction(tempArray[c])
condArray[c] = condMeltFunction(solidCond,meltFracArray[c])
tmodel.advance(maxIterPerTimeStep)
##Picard iterate out any temperature dependent conductivity
picardIters = 1
urf = 0.9
while(picardIters < 200):
for c in range(ncells):
solidCond = condFunction(tempArray[c])
if((meltFracArray[c] >= 1.0) or (tempArray[c] >= liquidTemp)):
condArray[c] = (1.0-urf)*condArray[c] + urf*solidCond
else:
condArray[c] = (1.0-urf)*condArray[c] + urf*condMeltFunction(solidCond,
max(meltFracArray[c],(tempArray[c]-solidTemp)/
(liquidTemp-solidTemp)))
picardIters = picardIters + 1
prev_temp = np.copy(tempArray)
tmodel.advance(maxIterPerTimeStep)
err_norm = np.linalg.norm(prev_temp-tempArray)/np.linalg.norm(tempArray)
print err_norm
if (err_norm < 1e-4*urf):
break
if (picardIters == 20):
print 'Picard Iterations did not converge after 20 iterations. Decreasing urf to 0.8'
urf = 0.8
if (picardIters == 60):
print 'Picard Iterations did not converge after 60 iterations. Decreasing urf to 0.7'
urf = 0.7
if (picardIters == 120):
print 'Picard Iterations did not converge after 120 iterations. Decreasing urf to 0.6'
urf = 0.6
else:
raise NameError('Picard iterations did not converge after 200 iterations')
##Update time
tmodel.updateTime()
time = time + timeStep
# Update laser position
laser_pos.x = laser_pos_next.x
laser_pos.y = laser_pos_next.y
f.write(str(time) + ' ' + str(numTimeSteps) + ' ' + str(laser_pos.x) + ' ' + str(laser_pos.y) + '\n')
# Output data for current timestep
if((numTimeSteps % outFreq) == 0):
filename = outfilebase + '_' + str(numTimeSteps) + '.vtk'
writer = exporters.VTKWriterA(geomFields,meshes,filename,
"TestTemperature",False,0)
writer.init()
writer.writeScalarField(thermalFields.temperature, "Temperature")
writer.writeScalarField(thermalFields.meltFrac, "MeltFraction")
#writer.writeScalarField(thermalFields.conductivity, "Conductivity")
writer.finish()
write_restart_file((ncells, temp, tempN1, enth, enthN1, enthInv, dHdT, meltFrac))
numTimeSteps = numTimeSteps + 1
if(int_time == 0.0):
laser_power = laser_power_next
line = laser_path.readline()
if (line == ''):
break
else:
words = line.split()
if (len(words) == 0):
break
else:
int_time = float(words[0])-time
v_laser = [(float(words[1])-laser_pos.x)/int_time,(float(words[2])-laser_pos.y)/int_time]
laser_power_next = float(words[3])
f.close()
return_temp = np.copy(temp)
return_tempN1 = np.copy(tempN1)
return_enth = np.copy(enth)
return_enthN1 = np.copy(enthN1)
return_enthInv = np.copy(enthInv)
return_dHdT = np.copy(dHdT)
return_meltFrac = np.copy(meltFrac)
return (ncells, return_temp, return_tempN1, return_enth,
return_enthN1, return_enthInv, return_dHdT, return_meltFrac)