def _pEqn( runTime, mesh, UEqn, U, p, p_rgh, gh, ghf, phi, alpha1, rho, g, interface, corr, nCorr, nNonOrthCorr, pRefCell, pRefValue, cumulativeContErr ):
rAU = 1.0/UEqn.A()
from Foam import fvc
rAUf = fvc.interpolate( rAU )
U.ext_assign( rAU * UEqn.H() )
from Foam.finiteVolume import surfaceScalarField
from Foam.OpenFOAM import word
phiU = surfaceScalarField( word( "phiU" ), fvc.interpolate( U ) & mesh.Sf() )
if p_rgh.needReference():
fvc.makeRelative( phiU, U )
from Foam.finiteVolume import adjustPhi
adjustPhi( phiU, U, p )
fvc.makeAbsolute( phiU, U )
pass
phi.ext_assign( phiU + ( fvc.interpolate( interface.sigmaK() ) * fvc.snGrad( alpha1 ) - ghf * fvc.snGrad( rho ) )*rAUf*mesh.magSf() )
from Foam import fvm
for nonOrth in range( nNonOrthCorr + 1 ):
p_rghEqn = fvm.laplacian( rAUf, p_rgh ) == fvc.div( phi )
p_rghEqn.setReference( pRefCell, pRefValue )
p_rghEqn.solve( mesh.solver( p_rgh.select(corr == nCorr-1 and nonOrth == nNonOrthCorr) ) )
if nonOrth == nNonOrthCorr:
phi.ext_assign( phi - p_rghEqn.flux() )
pass
pass
U.ext_assign( U + rAU * fvc.reconstruct( ( phi - phiU ) / rAUf ) )
U.correctBoundaryConditions()
from Foam.finiteVolume.cfdTools.incompressible import continuityErrs
cumulativeContErr = continuityErrs( mesh, phi, runTime, cumulativeContErr )
# Make the fluxes relative to the mesh motion
fvc.makeRelative( phi, U )
p == p_rgh + rho * gh
if p_rgh.needReference():
from Foam.OpenFOAM import pRefValue
p.ext_assign( p + dimensionedScalar( word( "p" ),
p.dimensions(),
pRefValue - getRefCellValue(p, pRefCell) ) )
p_rgh.ext_assign( p - rho * gh )
pass
return cumulativeContErr
def fun_pEqn(thermo, g, rho, UEqn, p, p_rgh, U, psi, phi, ghf, gh, initialMass,
runTime, mesh, nNonOrthCorr, pRefCell, eqnResidual, maxResidual,
cumulativeContErr):
rho.ext_assign(thermo.rho())
rho.relax()
rUA = 1.0 / UEqn.A()
from Foam.OpenFOAM import word
from Foam import fvc, fvm
from Foam.finiteVolume import surfaceScalarField
rhorUAf = surfaceScalarField(word("(rho*(1|A(U)))"),
fvc.interpolate(rho * rUA))
U.ext_assign(rUA * UEqn.H())
UEqn.clear()
phi.ext_assign(fvc.interpolate(rho) * (fvc.interpolate(U) & mesh.Sf()))
from Foam.finiteVolume import adjustPhi
closedVolume = adjustPhi(phi, U, p_rgh)
buoyancyPhi = surfaceScalarField(rhorUAf * ghf * fvc.snGrad(rho) *
mesh.magSf())
phi.ext_assign(phi - buoyancyPhi)
for nonOrth in range(nNonOrthCorr + 1):
from Foam import fvm
p_rghEqn = fvm.laplacian(rhorUAf, p_rgh) == fvc.div(phi)
from Foam.finiteVolume import getRefCellValue
p_rghEqn.setReference(pRefCell, getRefCellValue(p_rgh, pRefCell))
eqnResidual = p_rghEqn.solve().initialResidual()
if (nonOrth == 0):
maxResidual = max(eqnResidual, maxResidual)
pass
if (nonOrth == nNonOrthCorr):
# Calculate the conservative fluxes
phi.ext_assign(phi - p_rghEqn.flux())
# Explicitly relax pressure for momentum corrector
p_rgh.relax()
U.ext_assign(U - rUA * fvc.reconstruct(
(buoyancyPhi + p_rghEqn.flux()) / rhorUAf))
U.correctBoundaryConditions()
pass
from Foam.finiteVolume.cfdTools.general.include import ContinuityErrs
cumulativeContErr = ContinuityErrs(phi, runTime, mesh, cumulativeContErr)
p.ext_assign(p_rgh + rho * gh)
# For closed-volume cases adjust the pressure level
# to obey overall mass continuity
if closedVolume:
p.ext_assign(p + (initialMass - fvc.domainIntegrate(psi * p)) /
fvc.domainIntegrate(psi))
p_rgh.ext_assign(p - rho * gh)
rho.ext_assign(thermo.rho())
rho.relax()
ext_Info() << "rho max/min : " << rho.ext_max().value(
) << " " << rho.ext_min().value() << nl
return eqnResidual, maxResidual, cumulativeContErr
def _createFields(runTime, mesh, g):
from Foam.OpenFOAM import ext_Info, nl
from Foam.OpenFOAM import IOdictionary, IOobject, word, fileName
from Foam.finiteVolume import volScalarField
ext_Info() << "Reading field p_rgh\n" << nl
p_rgh = volScalarField(
IOobject(word("p_rgh"), fileName(runTime.timeName()), mesh, IOobject.MUST_READ, IOobject.AUTO_WRITE), mesh
)
ext_Info() << "Reading field alpha1\n" << nl
alpha1 = volScalarField(
IOobject(word("alpha1"), fileName(runTime.timeName()), mesh, IOobject.MUST_READ, IOobject.AUTO_WRITE), mesh
)
ext_Info() << "Reading field U\n" << nl
from Foam.finiteVolume import volVectorField
U = volVectorField(
IOobject(word("U"), fileName(runTime.timeName()), mesh, IOobject.MUST_READ, IOobject.AUTO_WRITE), mesh
)
from Foam.finiteVolume.cfdTools.incompressible import createPhi
phi = createPhi(runTime, mesh, U)
ext_Info() << "Reading transportProperties\n" << nl
from Foam.transportModels import twoPhaseMixture
twoPhaseProperties = twoPhaseMixture(U, phi)
rho1 = twoPhaseProperties.rho1()
rho2 = twoPhaseProperties.rho2()
from Foam.OpenFOAM import dimensionedScalar
Dab = dimensionedScalar(twoPhaseProperties.lookup(word("Dab")))
# Read the reciprocal of the turbulent Schmidt number
alphatab = dimensionedScalar(twoPhaseProperties.lookup(word("alphatab")))
# Need to store rho for ddt(rho, U)
from Foam.OpenFOAM import scalar
rho = volScalarField(word("rho"), alpha1 * rho1 + (scalar(1) - alpha1) * rho2)
rho.oldTime()
# Mass flux
# Initialisation does not matter because rhoPhi is reset after the
# alpha1 solution before it is used in the U equation.
from Foam.finiteVolume import surfaceScalarField
rhoPhi = surfaceScalarField(
IOobject(word("rho*phi"), fileName(runTime.timeName()), mesh, IOobject.NO_READ, IOobject.NO_WRITE), rho1 * phi
)
# Construct incompressible turbulence model
from Foam import incompressible
turbulence = incompressible.turbulenceModel.New(U, phi, twoPhaseProperties)
ext_Info() << "Calculating field g.h\n" << nl
gh = volScalarField(word("gh"), g & mesh.C())
ghf = surfaceScalarField(word("ghf"), g & mesh.Cf())
p = volScalarField(
IOobject(word("p"), fileName(runTime.timeName()), mesh, IOobject.NO_READ, IOobject.AUTO_WRITE), p_rgh + rho * gh
)
pRefCell = 0
pRefValue = 0.0
from Foam.finiteVolume import setRefCell, getRefCellValue
pRefCell, pRefValue = setRefCell(p, p_rgh, mesh.solutionDict().subDict(word("PIMPLE")), pRefCell, pRefValue)
if p_rgh.needReference():
p.ext_assign(p + dimensionedScalar(word("p"), p.dimensions(), pRefValue - getRefCellValue(p, pRefCell)))
p_rgh.ext_assign(p - rho * gh)
pass
return (
p_rgh,
alpha1,
U,
phi,
twoPhaseProperties,
rho1,
rho2,
Dab,
alphatab,
rho,
rhoPhi,
turbulence,
gh,
ghf,
p,
pRefCell,
pRefValue,
)
def createFields( runTime, mesh, g ):
from Foam.OpenFOAM import ext_Info, nl
from Foam.OpenFOAM import IOdictionary, IOobject, word, fileName
from Foam.finiteVolume import volScalarField
ext_Info() << "Reading thermophysical properties\n" << nl
ext_Info() << "Reading field T\n" << nl
T = volScalarField( IOobject( word( "T" ),
fileName( runTime.timeName() ),
mesh,
IOobject.MUST_READ,
IOobject.AUTO_WRITE ),
mesh )
ext_Info() << "Reading field p_rgh\n" << nl
p_rgh = volScalarField( IOobject( word( "p_rgh" ),
fileName( runTime.timeName() ),
mesh,
IOobject.MUST_READ,
IOobject.AUTO_WRITE ),
mesh )
ext_Info() << "Reading field U\n" << nl
from Foam.finiteVolume import volVectorField
U = volVectorField( IOobject( word( "U" ),
fileName( runTime.timeName() ),
mesh,
IOobject.MUST_READ,
IOobject.AUTO_WRITE ),
mesh )
from Foam.finiteVolume.cfdTools.incompressible import createPhi
phi = createPhi( runTime, mesh, U )
laminarTransport, beta, TRef,Pr, Prt = readTransportProperties( U, phi )
ext_Info() << "Creating turbulence model\n" << nl
from Foam import incompressible
turbulence = incompressible.RASModel.New( U, phi, laminarTransport )
# Kinematic density for buoyancy force
rhok = volScalarField( IOobject( word( "rhok" ),
fileName( runTime.timeName() ),
mesh ),
1.0 - beta * ( T - TRef ) )
# kinematic turbulent thermal thermal conductivity m2/s
ext_Info() << "Reading field kappat\n" << nl
kappat = volScalarField( IOobject( word( "kappat" ),
fileName( runTime.timeName() ),
mesh,
IOobject.MUST_READ,
IOobject.AUTO_WRITE ),
mesh )
ext_Info() << "Calculating field g.h\n" << nl
gh = volScalarField( word( "gh" ), g & mesh.C() )
from Foam.finiteVolume import surfaceScalarField
ghf = surfaceScalarField( word( "ghf" ), g & mesh.Cf() )
p = volScalarField( IOobject( word( "p" ),
fileName( runTime.timeName() ),
mesh,
IOobject.NO_READ,
IOobject.AUTO_WRITE ),
p_rgh + rhok * gh )
pRefCell = 0
pRefValue = 0.0
from Foam.finiteVolume import setRefCell
pRefCell, pRefValue = setRefCell( p, p_rgh, mesh.solutionDict().subDict( word( "SIMPLE" ) ), pRefCell, pRefValue )
if p_rgh.needReference():
from Foam.finiteVolume import getRefCellValue
from Foam.OpenFOAM import dimensionedScalar
p.ext_assign( p + dimensionedScalar( word( "p" ), p.dimensions(), pRefValue - getRefCellValue( p, pRefCell) ) )
pass
return T, p, p_rgh, U, phi, laminarTransport, gh, ghf, TRef,Pr, Prt, turbulence, beta, pRefCell, pRefValue, rhok, kappat
def fun_pEqn( runTime, mesh, p, p_rgh, phi, U, UEqn, ghf, gh, rhok, eqnResidual, maxResidual, nNonOrthCorr, cumulativeContErr, pRefCell, pRefValue ):
from Foam.finiteVolume import volScalarField, surfaceScalarField
from Foam.OpenFOAM import word
from Foam import fvc
rUA = volScalarField( word( "rUA" ), 1.0 / UEqn().A() )
rUAf = surfaceScalarField(word( "(1|A(U))" ), fvc.interpolate( rUA ) )
U.ext_assign( rUA * UEqn().H() )
UEqn.clear()
from Foam import fvc
phi.ext_assign( fvc.interpolate( U ) & mesh.Sf() )
from Foam.finiteVolume import adjustPhi
adjustPhi( phi, U, p_rgh )
buoyancyPhi = rUAf * ghf * fvc.snGrad( rhok ) * mesh.magSf()
phi.ext_assign( phi - buoyancyPhi )
for nonOrth in range( nNonOrthCorr+1 ):
from Foam import fvm, fvc
p_rghEqn = fvm.laplacian( rUAf, p_rgh ) == fvc.div(phi)
from Foam.finiteVolume import getRefCellValue
p_rghEqn.setReference( pRefCell, getRefCellValue( p_rgh, pRefCell ) )
# retain the residual from the first iteration
if ( nonOrth == 0 ):
eqnResidual = p_rghEqn.solve().initialResidual()
maxResidual = max( eqnResidual, maxResidual )
pass
else:
p_rghEqn.solve()
pass
if ( nonOrth == nNonOrthCorr ):
# Calculate the conservative fluxes
phi.ext_assign( phi - p_rghEqn.flux() )
# Explicitly relax pressure for momentum corrector
p_rgh.relax()
# Correct the momentum source with the pressure gradient flux
# calculated from the relaxed pressure
U.ext_assign( U - rUA * fvc.reconstruct( ( buoyancyPhi + p_rghEqn.flux() ) / rUAf ) )
U.correctBoundaryConditions()
pass
pass
from Foam.finiteVolume.cfdTools.incompressible import continuityErrs
cumulativeContErr = continuityErrs( mesh, phi, runTime, cumulativeContErr )
p.ext_assign( p_rgh + rhok * gh )
if p_rgh.needReference():
from Foam.OpenFOAM import dimensionedScalar
p.ext_assign( p + dimensionedScalar( word( "p" ), p.dimensions(), pRefValue - getRefCellValue( p, pRefCell ) ) )
p_rgh.ext_assign( p - rhok * gh )
pass
return eqnResidual, maxResidual, cumulativeContErr
def main_standalone(argc, argv):
from Foam.OpenFOAM.include import setRootCase
args = setRootCase(argc, argv)
from Foam.OpenFOAM.include import createTime
runTime = createTime(args)
from Foam.OpenFOAM.include import createMesh
mesh = createMesh(runTime)
from Foam.finiteVolume.cfdTools.general.include import readGravitationalAcceleration
g = readGravitationalAcceleration(runTime, mesh)
from Foam.finiteVolume.cfdTools.general.include import readPISOControls
piso, nCorr, nNonOrthCorr, momentumPredictor, transonic, nOuterCorr = readPISOControls(
mesh)
from Foam.finiteVolume.cfdTools.general.include import initContinuityErrs
cumulativeContErr = initContinuityErrs()
p, pd, gh, ghf, alpha1, U, phi, rho1, rho2, rho, rhoPhi,\
twoPhaseProperties, pdRefCell, pdRefValue, pRefValue, interface, turbulence = _createFields( runTime, mesh, g )
from Foam.finiteVolume.cfdTools.general.include import readTimeControls
adjustTimeStep, maxCo, maxDeltaT = readTimeControls(runTime)
correctPhi(runTime, mesh, phi, pd, rho, U, cumulativeContErr, nNonOrthCorr,
pdRefCell, pdRefValue)
from Foam.finiteVolume.cfdTools.incompressible import CourantNo
CoNum, meanCoNum, velMag = CourantNo(mesh, phi, runTime)
from Foam.finiteVolume.cfdTools.general.include import setInitialDeltaT
runTime = setInitialDeltaT(runTime, adjustTimeStep, maxCo, maxDeltaT,
CoNum)
from Foam.OpenFOAM import ext_Info, nl
ext_Info() << "\nStarting time loop\n" << nl
while runTime.run():
piso, nCorr, nNonOrthCorr, momentumPredictor, transonic, nOuterCorr = readPISOControls(
mesh)
adjustTimeStep, maxCo, maxDeltaT = readTimeControls(runTime)
CoNum, meanCoNum, velMag = CourantNo(mesh, phi, runTime)
from Foam.finiteVolume.cfdTools.general.include import setDeltaT
runTime = setDeltaT(runTime, adjustTimeStep, maxCo, maxDeltaT, CoNum)
runTime.increment()
ext_Info() << "Time = " << runTime.timeName() << nl << nl
twoPhaseProperties.correct()
alphaEqnSubCycle(runTime, piso, mesh, phi, alpha1, rho, rhoPhi, rho1,
rho2, interface)
UEqn = _UEqn(mesh, alpha1, U, pd, rho, rhoPhi, turbulence, ghf,
twoPhaseProperties, interface, momentumPredictor)
# --- PISO loop
for corr in range(nCorr):
_pEqn(mesh, UEqn, U, p, pd, phi, alpha1, rho, ghf, interface, corr,
nCorr, nNonOrthCorr, pdRefCell, pdRefValue)
pass
from Foam.finiteVolume.cfdTools.incompressible import continuityErrs
cumulativeContErr = continuityErrs(mesh, phi, runTime,
cumulativeContErr)
p.ext_assign(pd + rho * gh)
if pd.needReference():
from Foam.OpenFOAM import dimensionedScalar
from Foam.finiteVolume import getRefCellValue
p.ext_assign(
p +
dimensionedScalar(word("p"), p.dimensions(), pRefValue -
getRefCellValue(p, pdRefCell)))
pass
runTime.write()
ext_Info() << "ExecutionTime = " << runTime.elapsedCpuTime() << " s" << \
" ClockTime = " << runTime.elapsedClockTime() << " s" << nl << nl
pass
ext_Info() << "End\n" << nl
import os
return os.EX_OK
def _createFields(runTime, mesh, g):
from Foam.OpenFOAM import ext_Info, nl
from Foam.OpenFOAM import IOdictionary, IOobject, word, fileName
from Foam.finiteVolume import volScalarField
ext_Info() << "Reading field pd\n" << nl
pd = volScalarField(
IOobject(word("pd"), fileName(runTime.timeName()), mesh,
IOobject.MUST_READ, IOobject.AUTO_WRITE), mesh)
ext_Info() << "Reading field alpha1\n" << nl
alpha1 = volScalarField(
IOobject(word("alpha1"), fileName(runTime.timeName()), mesh,
IOobject.MUST_READ, IOobject.AUTO_WRITE), mesh)
ext_Info() << "Reading field U\n" << nl
from Foam.finiteVolume import volVectorField
U = volVectorField(
IOobject(word("U"), fileName(runTime.timeName()), mesh,
IOobject.MUST_READ, IOobject.AUTO_WRITE), mesh)
from Foam.finiteVolume.cfdTools.incompressible import createPhi
phi = createPhi(runTime, mesh, U)
ext_Info() << "Reading transportProperties\n" << nl
from Foam.transportModels import twoPhaseMixture
twoPhaseProperties = twoPhaseMixture(U, phi, word("alpha1"))
rho1 = twoPhaseProperties.rho1()
rho2 = twoPhaseProperties.rho2()
# Need to store rho for ddt(rho, U)
rho = volScalarField(
IOobject(word("rho"), fileName(runTime.timeName()), mesh,
IOobject.READ_IF_PRESENT),
alpha1 * rho1 + (1.0 - alpha1) * rho2,
alpha1.ext_boundaryField().types())
rho.oldTime()
# Mass flux
# Initialisation does not matter because rhoPhi is reset after the
# alpha1 solution before it is used in the U equation.
from Foam.finiteVolume import surfaceScalarField
rhoPhi = surfaceScalarField(
IOobject(word("rho*phi"), fileName(runTime.timeName()), mesh,
IOobject.NO_READ, IOobject.NO_WRITE), rho1 * phi)
ext_Info() << "Calculating field g.h\n" << nl
gh = volScalarField(word("gh"), g & mesh.C())
ghf = surfaceScalarField(word("gh"), g & mesh.Cf())
p = volScalarField(
IOobject(word("p"), fileName(runTime.timeName()), mesh,
IOobject.NO_READ, IOobject.AUTO_WRITE), pd + rho * gh)
pdRefCell = 0
pdRefValue = 0.0
from Foam.finiteVolume import setRefCell
pdRefCell, pdRefValue = setRefCell(
pd,
mesh.solutionDict().subDict(word("PISO")), pdRefCell, pdRefValue)
pRefValue = 0.0
if pd.needReference():
from Foam.OpenFOAM import readScalar, dimensionedScalar
from Foam.finiteVolume import getRefCellValue
pRefValue = readScalar(mesh.solutionDict().subDict(
word("PISO")).lookup(word("pRefValue")))
p.ext_assign(
p + dimensionedScalar(word("p"), p.dimensions(), pRefValue -
getRefCellValue(p, pdRefCell)))
pass
# Construct interface from alpha1 distribution
from Foam.transportModels import interfaceProperties
interface = interfaceProperties(alpha1, U, twoPhaseProperties)
# Construct incompressible turbulence model
from Foam import incompressible
turbulence = incompressible.turbulenceModel.New(U, phi, twoPhaseProperties)
return p, pd, gh, ghf, alpha1, U, phi, rho1, rho2, rho, rhoPhi, twoPhaseProperties, pdRefCell, pdRefValue, pRefValue, interface, turbulence
def createFields(runTime, mesh, g):
from Foam.OpenFOAM import ext_Info, nl
from Foam.OpenFOAM import IOdictionary, IOobject, word, fileName
from Foam.finiteVolume import volScalarField
ext_Info() << "Reading thermophysical properties\n" << nl
ext_Info() << "Reading field T\n" << nl
T = volScalarField(
IOobject(word("T"), fileName(runTime.timeName()), mesh, IOobject.MUST_READ, IOobject.AUTO_WRITE), mesh
)
ext_Info() << "Reading field p_rgh\n" << nl
p_rgh = volScalarField(
IOobject(word("p_rgh"), fileName(runTime.timeName()), mesh, IOobject.MUST_READ, IOobject.AUTO_WRITE), mesh
)
ext_Info() << "Reading field U\n" << nl
from Foam.finiteVolume import volVectorField
U = volVectorField(
IOobject(word("U"), fileName(runTime.timeName()), mesh, IOobject.MUST_READ, IOobject.AUTO_WRITE), mesh
)
from Foam.finiteVolume.cfdTools.incompressible import createPhi
phi = createPhi(runTime, mesh, U)
laminarTransport, beta, TRef, Pr, Prt = readTransportProperties(U, phi)
ext_Info() << "Creating turbulence model\n" << nl
from Foam import incompressible
turbulence = incompressible.RASModel.New(U, phi, laminarTransport)
# Kinematic density for buoyancy force
rhok = volScalarField(IOobject(word("rhok"), fileName(runTime.timeName()), mesh), 1.0 - beta * (T - TRef))
# kinematic turbulent thermal thermal conductivity m2/s
ext_Info() << "Reading field kappat\n" << nl
kappat = volScalarField(
IOobject(word("kappat"), fileName(runTime.timeName()), mesh, IOobject.MUST_READ, IOobject.AUTO_WRITE), mesh
)
ext_Info() << "Calculating field g.h\n" << nl
gh = volScalarField(word("gh"), g & mesh.C())
from Foam.finiteVolume import surfaceScalarField
ghf = surfaceScalarField(word("ghf"), g & mesh.Cf())
p = volScalarField(
IOobject(word("p"), fileName(runTime.timeName()), mesh, IOobject.NO_READ, IOobject.AUTO_WRITE),
p_rgh + rhok * gh,
)
pRefCell = 0
pRefValue = 0.0
from Foam.finiteVolume import setRefCell
pRefCell, pRefValue = setRefCell(p, p_rgh, mesh.solutionDict().subDict(word("SIMPLE")), pRefCell, pRefValue)
if p_rgh.needReference():
from Foam.finiteVolume import getRefCellValue
from Foam.OpenFOAM import dimensionedScalar
p.ext_assign(p + dimensionedScalar(word("p"), p.dimensions(), pRefValue - getRefCellValue(p, pRefCell)))
pass
return (
T,
p,
p_rgh,
U,
phi,
laminarTransport,
gh,
ghf,
TRef,
Pr,
Prt,
turbulence,
beta,
pRefCell,
pRefValue,
rhok,
kappat,
)
def fun_pEqn(
runTime,
mesh,
p,
p_rgh,
phi,
U,
UEqn,
ghf,
gh,
rhok,
eqnResidual,
maxResidual,
nNonOrthCorr,
cumulativeContErr,
pRefCell,
pRefValue,
):
from Foam.finiteVolume import volScalarField, surfaceScalarField
from Foam.OpenFOAM import word
from Foam import fvc
rUA = volScalarField(word("rUA"), 1.0 / UEqn().A())
rUAf = surfaceScalarField(word("(1|A(U))"), fvc.interpolate(rUA))
U.ext_assign(rUA * UEqn().H())
UEqn.clear()
from Foam import fvc
phi.ext_assign(fvc.interpolate(U) & mesh.Sf())
from Foam.finiteVolume import adjustPhi
adjustPhi(phi, U, p_rgh)
buoyancyPhi = rUAf * ghf * fvc.snGrad(rhok) * mesh.magSf()
phi.ext_assign(phi - buoyancyPhi)
for nonOrth in range(nNonOrthCorr + 1):
from Foam import fvm, fvc
p_rghEqn = fvm.laplacian(rUAf, p_rgh) == fvc.div(phi)
from Foam.finiteVolume import getRefCellValue
p_rghEqn.setReference(pRefCell, getRefCellValue(p_rgh, pRefCell))
# retain the residual from the first iteration
if nonOrth == 0:
eqnResidual = p_rghEqn.solve().initialResidual()
maxResidual = max(eqnResidual, maxResidual)
pass
else:
p_rghEqn.solve()
pass
if nonOrth == nNonOrthCorr:
# Calculate the conservative fluxes
phi.ext_assign(phi - p_rghEqn.flux())
# Explicitly relax pressure for momentum corrector
p_rgh.relax()
# Correct the momentum source with the pressure gradient flux
# calculated from the relaxed pressure
U.ext_assign(U - rUA * fvc.reconstruct((buoyancyPhi + p_rghEqn.flux()) / rUAf))
U.correctBoundaryConditions()
pass
pass
from Foam.finiteVolume.cfdTools.incompressible import continuityErrs
cumulativeContErr = continuityErrs(mesh, phi, runTime, cumulativeContErr)
p.ext_assign(p_rgh + rhok * gh)
if p_rgh.needReference():
from Foam.OpenFOAM import dimensionedScalar
p.ext_assign(p + dimensionedScalar(word("p"), p.dimensions(), pRefValue - getRefCellValue(p, pRefCell)))
p_rgh.ext_assign(p - rhok * gh)
pass
return eqnResidual, maxResidual, cumulativeContErr
def fun_pEqn( thermo, g, rho, UEqn, p, p_rgh, U, psi, phi, ghf, gh, initialMass, runTime, mesh, nNonOrthCorr, pRefCell, eqnResidual, maxResidual, cumulativeContErr ):
rho.ext_assign( thermo.rho() )
rho.relax()
rUA = 1.0/UEqn.A()
from Foam.OpenFOAM import word
from Foam import fvc,fvm
from Foam.finiteVolume import surfaceScalarField
rhorUAf = surfaceScalarField(word( "(rho*(1|A(U)))" ) , fvc.interpolate(rho*rUA));
U.ext_assign(rUA*UEqn.H())
UEqn.clear()
phi.ext_assign( fvc.interpolate( rho )*(fvc.interpolate(U) & mesh.Sf()) )
from Foam.finiteVolume import adjustPhi
closedVolume = adjustPhi(phi, U, p_rgh );
buoyancyPhi =surfaceScalarField( rhorUAf * ghf * fvc.snGrad( rho ) * mesh.magSf() )
phi.ext_assign( phi - buoyancyPhi )
for nonOrth in range( nNonOrthCorr+1 ):
from Foam import fvm
p_rghEqn = fvm.laplacian(rhorUAf, p_rgh) == fvc.div(phi)
from Foam.finiteVolume import getRefCellValue
p_rghEqn.setReference(pRefCell, getRefCellValue( p_rgh, pRefCell ) )
eqnResidual = p_rghEqn.solve().initialResidual()
if (nonOrth == 0):
maxResidual = max(eqnResidual, maxResidual)
pass
if (nonOrth == nNonOrthCorr):
# Calculate the conservative fluxes
phi.ext_assign( phi - p_rghEqn.flux() )
# Explicitly relax pressure for momentum corrector
p_rgh.relax()
U.ext_assign( U - rUA * fvc.reconstruct( ( buoyancyPhi + p_rghEqn.flux() ) / rhorUAf ) )
U.correctBoundaryConditions()
pass
from Foam.finiteVolume.cfdTools.general.include import ContinuityErrs
cumulativeContErr = ContinuityErrs( phi, runTime, mesh, cumulativeContErr )
p.ext_assign( p_rgh + rho * gh )
# For closed-volume cases adjust the pressure level
# to obey overall mass continuity
if closedVolume:
p.ext_assign( p + (initialMass - fvc.domainIntegrate( psi * p ) ) / fvc.domainIntegrate( psi ) )
p_rgh.ext_assign( p - rho * gh )
rho.ext_assign( thermo.rho() )
rho.relax()
ext_Info()<< "rho max/min : " << rho.ext_max().value() << " " << rho.ext_min().value() << nl
return eqnResidual, maxResidual, cumulativeContErr
def _createFields( runTime, mesh ):
from Foam.OpenFOAM import ext_Info, nl
from Foam.OpenFOAM import IOdictionary, IOobject, word, fileName
from Foam.finiteVolume import volScalarField
ext_Info() << "Reading field p\n" << nl
p_rgh = volScalarField( IOobject( word( "p_rgh" ),
fileName( runTime.timeName() ),
mesh,
IOobject.MUST_READ,
IOobject.AUTO_WRITE ),
mesh )
ext_Info() << "Reading field alpha1\n" << nl
alpha1 = volScalarField( IOobject( word( "alpha1" ),
fileName( runTime.timeName() ),
mesh,
IOobject.MUST_READ,
IOobject.AUTO_WRITE ),
mesh )
ext_Info() << "Reading field U\n" << nl
from Foam.finiteVolume import volVectorField
U = volVectorField( IOobject( word( "U" ),
fileName( runTime.timeName() ),
mesh,
IOobject.MUST_READ,
IOobject.AUTO_WRITE ),
mesh )
from Foam.finiteVolume.cfdTools.incompressible import createPhi
phi = createPhi( runTime, mesh, U )
ext_Info() << "Reading transportProperties\n" << nl
from Foam.transportModels import twoPhaseMixture
twoPhaseProperties = twoPhaseMixture(U, phi)
rho1 = twoPhaseProperties.rho1()
rho2 = twoPhaseProperties.rho2()
# Need to store rho for ddt(rho, U)
rho = volScalarField( IOobject( word( "rho" ),
fileName( runTime.timeName() ),
mesh,
IOobject.READ_IF_PRESENT ),
alpha1 * rho1 + ( 1.0 - alpha1 ) * rho2,
alpha1.ext_boundaryField().types() )
rho.oldTime()
# Mass flux
# Initialisation does not matter because rhoPhi is reset after the
# alpha1 solution before it is used in the U equation.
from Foam.finiteVolume import surfaceScalarField
rhoPhi = surfaceScalarField( IOobject( word( "rho*phi" ),
fileName( runTime.timeName() ),
mesh,
IOobject.NO_READ,
IOobject.NO_WRITE ),
rho1 * phi )
# Construct interface from alpha1 distribution
from Foam.transportModels import interfaceProperties
interface = interfaceProperties( alpha1, U, twoPhaseProperties )
# Construct incompressible turbulence model
from Foam import incompressible
turbulence = incompressible.turbulenceModel.New( U, phi, twoPhaseProperties )
from Foam.finiteVolume.cfdTools.general.include import readGravitationalAcceleration
g = readGravitationalAcceleration( runTime, mesh)
#dimensionedVector g0(g);
#Read the data file and initialise the interpolation table
#interpolationTable<vector> timeSeriesAcceleration( runTime.path()/runTime.caseConstant()/"acceleration.dat" );
ext_Info() << "Calculating field g.h\n" << nl
gh = volScalarField( word( "gh" ), g & mesh.C() )
ghf = surfaceScalarField( word( "ghf" ), g & mesh.Cf() )
p = volScalarField( IOobject( word( "p" ),
fileName( runTime.timeName() ),
mesh,
IOobject.NO_READ,
IOobject.AUTO_WRITE ),
p_rgh + rho * gh )
pRefCell = 0
pRefValue = 0.0
from Foam.finiteVolume import setRefCell, getRefCellValue
pRefCell, pRefValue = setRefCell( p, mesh.solutionDict().subDict( word( "PISO" ) ), pRefCell, pRefValue )
if p_rgh.needReference():
p.ext_assign( p + dimensionedScalar( word( "p" ),
p.dimensions(),
pRefValue - getRefCellValue(p, pRefCell) ) )
p_rgh.ext_assign( p - rho * gh )
pass
return p_rgh, p, alpha1, U, phi, rho1, rho2, rho, rhoPhi, twoPhaseProperties, pRefCell, pRefValue, interface, turbulence, g, gh, ghf
def main_standalone(argc, argv):
from Foam.OpenFOAM.include import setRootCase
args = setRootCase(argc, argv)
from Foam.OpenFOAM.include import createTime
runTime = createTime(args)
from Foam.OpenFOAM.include import createMesh
mesh = createMesh(runTime)
from Foam.finiteVolume.cfdTools.general.include import readGravitationalAcceleration
g = readGravitationalAcceleration(runTime, mesh)
from Foam.finiteVolume.cfdTools.general.include import readPISOControls
piso, nCorr, nNonOrthCorr, momentumPredictor, transonic, nOuterCorr = readPISOControls(mesh)
from Foam.finiteVolume.cfdTools.general.include import initContinuityErrs
cumulativeContErr = initContinuityErrs()
p, pd, gh, ghf, alpha1, U, phi, rho1, rho2, rho, rhoPhi, twoPhaseProperties, pdRefCell, pdRefValue, pRefValue, interface, turbulence = _createFields(
runTime, mesh, g
)
from Foam.finiteVolume.cfdTools.general.include import readTimeControls
adjustTimeStep, maxCo, maxDeltaT = readTimeControls(runTime)
correctPhi(runTime, mesh, phi, pd, rho, U, cumulativeContErr, nNonOrthCorr, pdRefCell, pdRefValue)
from Foam.finiteVolume.cfdTools.incompressible import CourantNo
CoNum, meanCoNum, velMag = CourantNo(mesh, phi, runTime)
from Foam.finiteVolume.cfdTools.general.include import setInitialDeltaT
runTime = setInitialDeltaT(runTime, adjustTimeStep, maxCo, maxDeltaT, CoNum)
from Foam.OpenFOAM import ext_Info, nl
ext_Info() << "\nStarting time loop\n" << nl
while runTime.run():
piso, nCorr, nNonOrthCorr, momentumPredictor, transonic, nOuterCorr = readPISOControls(mesh)
adjustTimeStep, maxCo, maxDeltaT = readTimeControls(runTime)
CoNum, meanCoNum, velMag = CourantNo(mesh, phi, runTime)
from Foam.finiteVolume.cfdTools.general.include import setDeltaT
runTime = setDeltaT(runTime, adjustTimeStep, maxCo, maxDeltaT, CoNum)
runTime.increment()
ext_Info() << "Time = " << runTime.timeName() << nl << nl
twoPhaseProperties.correct()
alphaEqnSubCycle(runTime, piso, mesh, phi, alpha1, rho, rhoPhi, rho1, rho2, interface)
UEqn = _UEqn(
mesh, alpha1, U, pd, rho, rhoPhi, turbulence, ghf, twoPhaseProperties, interface, momentumPredictor
)
# --- PISO loop
for corr in range(nCorr):
_pEqn(
mesh, UEqn, U, p, pd, phi, alpha1, rho, ghf, interface, corr, nCorr, nNonOrthCorr, pdRefCell, pdRefValue
)
pass
from Foam.finiteVolume.cfdTools.incompressible import continuityErrs
cumulativeContErr = continuityErrs(mesh, phi, runTime, cumulativeContErr)
p.ext_assign(pd + rho * gh)
if pd.needReference():
from Foam.OpenFOAM import dimensionedScalar
from Foam.finiteVolume import getRefCellValue
p.ext_assign(p + dimensionedScalar(word("p"), p.dimensions(), pRefValue - getRefCellValue(p, pdRefCell)))
pass
runTime.write()
ext_Info() << "ExecutionTime = " << runTime.elapsedCpuTime() << " s" << " ClockTime = " << runTime.elapsedClockTime() << " s" << nl << nl
pass
ext_Info() << "End\n" << nl
import os
return os.EX_OK
def _createFields(runTime, mesh, g):
from Foam.OpenFOAM import ext_Info, nl
from Foam.OpenFOAM import IOdictionary, IOobject, word, fileName
from Foam.finiteVolume import volScalarField
ext_Info() << "Reading field pd\n" << nl
pd = volScalarField(
IOobject(word("pd"), fileName(runTime.timeName()), mesh, IOobject.MUST_READ, IOobject.AUTO_WRITE), mesh
)
ext_Info() << "Reading field alpha1\n" << nl
alpha1 = volScalarField(
IOobject(word("alpha1"), fileName(runTime.timeName()), mesh, IOobject.MUST_READ, IOobject.AUTO_WRITE), mesh
)
ext_Info() << "Reading field U\n" << nl
from Foam.finiteVolume import volVectorField
U = volVectorField(
IOobject(word("U"), fileName(runTime.timeName()), mesh, IOobject.MUST_READ, IOobject.AUTO_WRITE), mesh
)
from Foam.finiteVolume.cfdTools.incompressible import createPhi
phi = createPhi(runTime, mesh, U)
ext_Info() << "Reading transportProperties\n" << nl
from Foam.transportModels import twoPhaseMixture
twoPhaseProperties = twoPhaseMixture(U, phi, word("alpha1"))
rho1 = twoPhaseProperties.rho1()
rho2 = twoPhaseProperties.rho2()
# Need to store rho for ddt(rho, U)
rho = volScalarField(
IOobject(word("rho"), fileName(runTime.timeName()), mesh, IOobject.READ_IF_PRESENT),
alpha1 * rho1 + (1.0 - alpha1) * rho2,
alpha1.ext_boundaryField().types(),
)
rho.oldTime()
# Mass flux
# Initialisation does not matter because rhoPhi is reset after the
# alpha1 solution before it is used in the U equation.
from Foam.finiteVolume import surfaceScalarField
rhoPhi = surfaceScalarField(
IOobject(word("rho*phi"), fileName(runTime.timeName()), mesh, IOobject.NO_READ, IOobject.NO_WRITE), rho1 * phi
)
ext_Info() << "Calculating field g.h\n" << nl
gh = volScalarField(word("gh"), g & mesh.C())
ghf = surfaceScalarField(word("gh"), g & mesh.Cf())
p = volScalarField(
IOobject(word("p"), fileName(runTime.timeName()), mesh, IOobject.NO_READ, IOobject.AUTO_WRITE), pd + rho * gh
)
pdRefCell = 0
pdRefValue = 0.0
from Foam.finiteVolume import setRefCell
pdRefCell, pdRefValue = setRefCell(pd, mesh.solutionDict().subDict(word("PISO")), pdRefCell, pdRefValue)
pRefValue = 0.0
if pd.needReference():
from Foam.OpenFOAM import readScalar, dimensionedScalar
from Foam.finiteVolume import getRefCellValue
pRefValue = readScalar(mesh.solutionDict().subDict(word("PISO")).lookup(word("pRefValue")))
p.ext_assign(p + dimensionedScalar(word("p"), p.dimensions(), pRefValue - getRefCellValue(p, pdRefCell)))
pass
# Construct interface from alpha1 distribution
from Foam.transportModels import interfaceProperties
interface = interfaceProperties(alpha1, U, twoPhaseProperties)
# Construct incompressible turbulence model
from Foam import incompressible
turbulence = incompressible.turbulenceModel.New(U, phi, twoPhaseProperties)
return (
p,
pd,
gh,
ghf,
alpha1,
U,
phi,
rho1,
rho2,
rho,
rhoPhi,
twoPhaseProperties,
pdRefCell,
pdRefValue,
pRefValue,
interface,
turbulence,
)
