void EBPoissonOp::
getOpVoFStencil(VoFStencil& a_stencil,
const int& a_idir,
const Vector<VolIndex>& a_allMonotoneVoFs,
const EBISBox& a_ebisbox,
const VolIndex& a_VoF,
const bool& a_lowOrder)
{
for (SideIterator sit; sit.ok(); ++sit)
{
Side::LoHiSide side = sit();
Vector<FaceIndex> faces;
faces = a_ebisbox.getFaces(a_VoF,a_idir,side);
for (int iface = 0; iface < faces.size(); iface++)
{
FaceIndex face = faces[iface];
VoFStencil faceStencil;
getOpFaceStencil(faceStencil,a_allMonotoneVoFs,a_ebisbox,a_VoF,
a_idir,side,face,a_lowOrder);
a_stencil += faceStencil;
}
}
}
void
NoFlowAdvectBC::
fluxBC(EBFluxFAB& a_primGdnv,
const EBCellFAB& a_primCenter,
const EBCellFAB& a_primExtrap,
const Side::LoHiSide& a_side,
const Real& a_time,
const EBISBox& a_ebisBox,
const DataIndex& a_dit,
const Box& a_box,
const Box& a_faceBox,
const int& a_dir)
{
CH_assert(m_isDefined);
Box FBox = a_faceBox;
Box cellBox = FBox;
CH_assert(a_primGdnv[a_dir].nComp()==1);
// Determine which side and thus shifting directions
int isign = sign(a_side);
cellBox.shiftHalf(a_dir,isign);
// Is there a domain boundary next to this grid
if (!m_domain.contains(cellBox))
{
cellBox &= m_domain;
// Find the strip of cells next to the domain boundary
Box bndryBox = adjCellBox(cellBox, a_dir, a_side, 1);
// Shift things to all line up correctly
bndryBox.shift(a_dir,-isign);
IntVectSet ivs(bndryBox);
for (VoFIterator vofit(ivs, a_ebisBox.getEBGraph()); vofit.ok(); ++vofit)
{
const VolIndex& vof = vofit();
Vector<FaceIndex> bndryFaces = a_ebisBox.getFaces(vof, a_dir, a_side);
for (int iface= 0; iface < bndryFaces.size(); iface++)
{
const FaceIndex& face = bndryFaces[iface];
//set all fluxes to zero then fix momentum flux
//solid wall
if (a_dir == m_velComp)
{
a_primGdnv[a_dir](face, 0) = 0.0;
}
else
{
a_primGdnv[a_dir](face, 0) = a_primExtrap(vof, 0);
}
}
}
}
}
void
EBGradDivFilter::
getAreaFracs(Vector<FaceIndex> a_facesLo[SpaceDim],
Vector<FaceIndex> a_facesHi[SpaceDim],
bool a_hasFacesLo[SpaceDim],
bool a_hasFacesHi[SpaceDim],
RealVect& a_areaFracLo,
RealVect& a_areaFracHi,
const VolIndex& a_vof,
const EBISBox& a_ebisBox)
{
for (int idir = 0; idir < SpaceDim; idir++)
{
Real areaSumLo = 0;
Real areaSumHi = 0;
a_facesLo[idir] = a_ebisBox.getFaces(a_vof, idir, Side::Lo);
a_facesHi[idir] = a_ebisBox.getFaces(a_vof, idir, Side::Hi);
a_hasFacesLo[idir] = ( ( a_facesLo[idir].size() > 0) &&
(!a_facesLo[idir][0].isBoundary()));
a_hasFacesHi[idir] = ( ( a_facesHi[idir].size() > 0) &&
(!a_facesHi[idir][0].isBoundary()));
//want boundary faces to look covered
if (a_hasFacesLo[idir])
{
for (int iface = 0; iface < a_facesLo[idir].size(); iface++)
{
areaSumLo += a_ebisBox.areaFrac(a_facesLo[idir][iface]);
}
}
//want boundary faces to look covered
if (a_hasFacesHi[idir])
{
for (int iface = 0; iface < a_facesHi[idir].size(); iface++)
{
areaSumHi += a_ebisBox.areaFrac(a_facesHi[idir][iface]);
}
}
a_areaFracLo[idir] = areaSumLo;
a_areaFracHi[idir] = areaSumHi;
}
}
Real
divergence(const EBFluxFAB& a_func,
const RealVect& a_bndryFlux,
const EBISBox& a_ebisBox,
const VolIndex& a_vof,
const Real& a_dx)
{
Real retval = 0;
Real bndryArea = a_ebisBox.bndryArea(a_vof);
RealVect normal = a_ebisBox.normal(a_vof);
for (int idir = 0; idir < SpaceDim; idir++)
{
Real bndryFlux = a_bndryFlux[idir]; //normal already dealt with
Real bndryContrib = -bndryFlux*bndryArea*normal[idir];
Real openContrib = 0;
if (bndryArea > 1.0e-3)
{
openContrib = 0;
}
for (SideIterator sit; sit.ok(); ++sit)
{
int isign = sign(sit());
Real rsign = isign;
Vector<FaceIndex> faces = a_ebisBox.getFaces(a_vof, idir, sit());
for (int iface = 0; iface < faces.size(); ++iface)
{
Real areaFrac = a_ebisBox.areaFrac(faces[iface]);
Real faceFlux = a_func[idir](faces[iface], 0);
openContrib += rsign*faceFlux*areaFrac;
}
}
retval += openContrib + bndryContrib;
}
retval /= a_dx;
return retval;
}
void
EBCompositeMACProjector::
correctTangentialVelocity(EBFaceFAB& a_velocity,
const EBFaceFAB& a_gradient,
const Box& a_grid,
const EBISBox& a_ebisBox,
const IntVectSet& a_cfivs)
{
CH_TIME("EBCompositeMACProjector::correctTangentialVelocity");
int velDir = a_velocity.direction();
int gradDir = a_gradient.direction();
//veldir is the face on which the velocity lives
//graddir is the direction of the component
//and the face on which the mac gradient lives
CH_assert(velDir != gradDir);
CH_assert(a_velocity.nComp() == 1);
CH_assert(a_gradient.nComp() == 1);
//updating in place in fortran so we have to save a acopy
EBFaceFAB velSave(a_ebisBox, a_velocity.getCellRegion(), velDir, 1);
velSave.copy(a_velocity);
//interior box is the box where all of the stencil can be reached
//without going out of the domain
ProblemDomain domainBox = a_ebisBox.getDomain();
Box interiorBox = a_grid;
interiorBox.grow(1);
interiorBox &= domainBox;
interiorBox.grow(-1);
Box interiorFaceBox = surroundingNodes(interiorBox, velDir);
if (!interiorBox.isEmpty())
{
BaseFab<Real>& regVel = a_velocity.getSingleValuedFAB();
const BaseFab<Real>& regGrad = a_gradient.getSingleValuedFAB();
FORT_REGCORRECTTANVEL(CHF_FRA1(regVel,0),
CHF_CONST_FRA1(regGrad,0),
CHF_BOX(interiorFaceBox),
CHF_INT(velDir),
CHF_INT(gradDir));
}
//do only irregular and boundary cells pointwise
IntVectSet ivsIrreg = a_ebisBox.getIrregIVS(a_grid);
IntVectSet ivsGrid(a_grid);
ivsGrid -= interiorBox;
ivsGrid |= ivsIrreg;
FaceIterator faceit(ivsGrid, a_ebisBox.getEBGraph(), velDir, FaceStop::SurroundingWithBoundary);
for (faceit.reset(); faceit.ok(); ++faceit)
{
//average neighboring grads in grad dir direction
int numGrads = 0;
Real gradAve = 0.0;
const FaceIndex& velFace = faceit();
for (SideIterator sitVel; sitVel.ok(); ++sitVel)
{
const VolIndex& vofSide = velFace.getVoF(sitVel());
const IntVect& ivSide = vofSide.gridIndex();
//do not include stuff over coarse-fine interface and inside the domain
//cfivs includes cells just outside domain
if (!a_cfivs.contains(ivSide) && domainBox.contains(ivSide))
{
for (SideIterator sitGrad; sitGrad.ok(); ++sitGrad)
{
Vector<FaceIndex> gradFaces = a_ebisBox.getFaces(vofSide, gradDir, sitGrad());
for (int iface = 0; iface < gradFaces.size(); iface++)
{
if (!gradFaces[iface].isBoundary())
{
numGrads++;
gradAve += a_gradient(gradFaces[iface], 0);
}
}
}//end loop over gradient sides
}//end cfivs check
else
{
// inside coarse/fine interface or at domain boundary. extrapolate from neighboring vofs to get the gradient
const Side::LoHiSide inSide = flip(sitVel());
const VolIndex& inSideVof = velFace.getVoF(inSide);
const IntVect& inSideIV = inSideVof.gridIndex();
IntVect inSideFarIV = inSideIV;
inSideFarIV[velDir] += sign(inSide);
if (domainBox.contains(inSideIV) && domainBox.contains(inSideFarIV))
{
Vector<VolIndex> farVofs = a_ebisBox.getVoFs(inSideFarIV);
if (farVofs.size() == 1)
{
const VolIndex& inSideFarVof = farVofs[0];
for (SideIterator sitGrad; sitGrad.ok(); ++sitGrad)
{
//get the grad for the face adjoining inSideVof on the sitGrad side, in the gradDir direction
Vector<FaceIndex> gradFaces = a_ebisBox.getFaces(inSideVof , gradDir, sitGrad());
Vector<FaceIndex> gradFarFaces = a_ebisBox.getFaces(inSideFarVof, gradDir, sitGrad());
if ( (gradFaces.size() == 1) && (gradFarFaces.size() == 1) )
{
// if ( (!gradFaces[0].isBoundary()) && (!gradFarFaces[0].isBoundary()) )
// {
const Real& inSideGrad = a_gradient(gradFaces[0], 0);
const Real& inSideFarGrad = a_gradient(gradFarFaces[0], 0);
Real extrapGrad = 2.0*inSideGrad - inSideFarGrad;
gradAve += extrapGrad;
numGrads++;
// }
}
}
}
}
}//end cfivs check
}//end loop over sides of velocity face
if (numGrads > 1)
{
gradAve /= Real(numGrads);
}
//remember that the fortran updated the velocity in place so
//we have to use the saved velocity
a_velocity(velFace, 0) = velSave(velFace, 0) - gradAve;
}
}
void
EBCompositeMACProjector::
correctVelocityComponent(BaseIVFAB<Real> & a_coveredVel,
const Vector<VolIndex>& a_coveredFace,
const IntVectSet & a_coveredSets,
const EBFluxFAB & a_macGradient,
const EBISBox & a_ebisBox,
int a_coveredFaceDir, Side::LoHiSide a_sd, int a_faceGradComp)
{
CH_TIME("EBCompositeMACProjector::correctVelocityComponent");
//if a_coveredFaceDir == faceGradComp, just linearly extrapolate gradient and subtract.
//if a_coveredFaceDir != faceGradComp, need to average to cell centers then extrapolate and subtract
CH_assert(a_coveredVel.nComp() == 1);
CH_assert(a_macGradient.nComp() == 1);
const EBFaceFAB& macGradFAB = a_macGradient[a_faceGradComp];
for (int ivof = 0; ivof < a_coveredFace.size(); ivof++)
{
const VolIndex& vof = a_coveredFace[ivof];
Vector<FaceIndex> nearFaces, farFaces;
bool hasNearFaces = false;
bool hasFarFaces = false;
VolIndex nearVoF, farVoF;
FaceIndex nearFace, farFace;
nearFaces = a_ebisBox.getFaces(vof, a_coveredFaceDir, flip(a_sd));
hasNearFaces = (nearFaces.size()==1) && (!nearFaces[0].isBoundary());
if (hasNearFaces)
{
nearFace = nearFaces[0];
nearVoF = nearFace.getVoF(flip(a_sd));
farFaces = a_ebisBox.getFaces(nearVoF, a_coveredFaceDir, flip(a_sd));
hasFarFaces = (farFaces.size()==1) && (!farFaces[0].isBoundary());
if (hasFarFaces)
{
farFace = farFaces[0];
farVoF = farFace.getVoF(flip(a_sd));
}
}
Real extrapGrad;
if (a_coveredFaceDir == a_faceGradComp)
{
//if a_coveredFaceDir == faceGradComp, just linearly extrapolate gradient and subtract.
if (hasNearFaces && hasFarFaces)
{
Real nearGrad = macGradFAB(nearFace, 0);
Real farGrad = macGradFAB(farFace, 0);
extrapGrad = 2.0*nearGrad - farGrad;
}
else if (hasNearFaces)
{
extrapGrad = macGradFAB(nearFace, 0);
}
else
{
extrapGrad = 0.0;
}
}
else
{
//if a_coveredFaceDir != faceGradComp, need to average to cell centers then extrapolate and subtract
Real nearGrad = getAverageFaceGrad(vof, macGradFAB, a_ebisBox, a_faceGradComp);
if (hasNearFaces)
{
Real farGrad = getAverageFaceGrad(nearVoF, macGradFAB, a_ebisBox, a_faceGradComp);
extrapGrad = 1.5*nearGrad - 0.5*farGrad;
}
else
{
extrapGrad = nearGrad;
}
}
a_coveredVel(vof, 0) -= extrapGrad;
}
}
Real
getAverageFaceGrad(const VolIndex& a_vof,
const EBFaceFAB& a_macGradient,
const EBISBox& a_ebisBox,
int a_faceDir)
{
CH_TIME("EBCompositeMACProjector::getAverageFaceGrad");
Vector<FaceIndex> hiFaces = a_ebisBox.getFaces(a_vof, a_faceDir, Side::Hi);
Vector<FaceIndex> loFaces = a_ebisBox.getFaces(a_vof, a_faceDir, Side::Lo);
bool hasHiFaces = (hiFaces.size() > 0);
bool hasLoFaces = (loFaces.size() > 0);
Real hiVal = 0.0;
Real loVal = 0.0;
if (hasHiFaces)
{
for (int iface = 0; iface < hiFaces.size(); iface++)
{
hiVal += a_macGradient(hiFaces[iface], 0);
}
hiVal /= hiFaces.size();
}
if (hasLoFaces)
{
for (int iface = 0; iface < loFaces.size(); iface++)
{
loVal += a_macGradient(loFaces[iface], 0);
}
loVal /= loFaces.size();
}
if (!hasLoFaces && hasHiFaces)
{
//only want to do the wacky extrapolation thing if not multivalued
if ((hiFaces.size() == 1) && (!hiFaces[0].isBoundary()))
{
const VolIndex& hiVoF = hiFaces[0].getVoF(Side::Hi);
Vector<FaceIndex> farFaces = a_ebisBox.getFaces(hiVoF, a_faceDir, Side::Hi);
if (farFaces.size() > 0)
{
Real farVal = 0.0;
for (int iface = 0; iface < farFaces.size(); iface++)
{
farVal += a_macGradient(farFaces[iface], 0);
}
farVal /= farFaces.size();
loVal = 2*hiVal - farVal;
}
else
{
loVal = hiVal;
}
}
else
{
loVal = hiVal;
}
}
if (!hasHiFaces && hasLoFaces)
{
//only want to do the wacky extrapolation thing if not multivalued
if ((loFaces.size() == 1) && (!loFaces[0].isBoundary()))
{
const VolIndex& hiVoF = loFaces[0].getVoF(Side::Lo);
Vector<FaceIndex> farFaces = a_ebisBox.getFaces(hiVoF, a_faceDir, Side::Lo);
if (farFaces.size() > 0)
{
Real farVal = 0.0;
for (int iface = 0; iface < farFaces.size(); iface++)
{
farVal += a_macGradient(farFaces[iface], 0);
}
farVal /= farFaces.size();
hiVal = 2*loVal - farVal;
}
else
{
hiVal = loVal;
}
}
else
{
hiVal = loVal;
}
}
Real retval = 0.5*(hiVal + loVal);
return retval;
}
void
EBPlanarShockIBC::
setBndrySlopes(EBCellFAB& a_deltaPrim,
const EBCellFAB& a_primState,
const EBISBox& a_ebisBox,
const Box& a_box,
const int& a_dir)
{
// don't want to deal with the periodic case
CH_assert(!m_domain.isPeriodic(a_dir));
CH_assert(m_isDefined);
CH_assert(m_isFortranCommonSet);
Box loBox,hiBox,centerBox,domain;
int hasLo,hasHi;
Box slopeBox = a_deltaPrim.getRegion()&m_domain;
int numSlop = a_deltaPrim.nComp();
// Generate the domain boundary boxes, loBox and hiBox, if there are
// domain boundarys there
eblohicenter(loBox,hasLo,hiBox,hasHi,centerBox,domain,
slopeBox,m_domain,a_dir);
// Set the boundary slopes if necessary
if ((hasLo != 0) || (hasHi != 0))
{
BaseFab<Real>& regDeltaPrim = a_deltaPrim.getSingleValuedFAB();
const BaseFab<Real>& regPrimState = a_primState.getSingleValuedFAB();
/**/
FORT_SLOPEBCS(CHF_FRA(regDeltaPrim),
CHF_CONST_FRA(regPrimState),
CHF_CONST_REAL(m_dx),
CHF_CONST_INT(a_dir),
CHF_BOX(loBox),
CHF_CONST_INT(hasLo),
CHF_BOX(hiBox),
CHF_CONST_INT(hasHi));
/**/
}
for(SideIterator sit; sit.ok(); ++sit)
{
bool doThisSide;
Box thisBox;
if(sit() == Side::Lo)
{
doThisSide = (hasLo != 0);
thisBox = loBox;
}
else
{
doThisSide = (hasHi != 0);
thisBox = hiBox;
}
if(doThisSide)
{
// the cells for which the regular calculation
//are incorrect are the grown set of the multivalued
//cells intersected with the appropriate bndry box
//and added to the irregular cells on the boundary.
Box boxGrown = thisBox;
boxGrown.grow(a_dir, 1);
boxGrown &= m_domain;
IntVectSet ivs = a_ebisBox.getMultiCells(boxGrown);
ivs &= loBox;
IntVectSet ivsIrreg = a_ebisBox.getIrregIVS(thisBox);
ivs |= ivsIrreg;
for(VoFIterator vofit(ivs, a_ebisBox.getEBGraph()); vofit.ok(); ++vofit)
{
const VolIndex& vof = vofit();
//all slopes at boundary get set to zero
//except normal velocity. just following the
//fortran here
int inormVelVar = a_dir + QVELX;
for(int ivar = 0; ivar < numSlop; ivar++)
{
if(ivar != inormVelVar)
{
a_deltaPrim(vof, ivar) = 0.0;
}
}
//for normal velocity
//do strangely limited slope
//just lifted from the fortran.
Side::LoHiSide otherSide = flip(sit());
Vector<FaceIndex> faces =
a_ebisBox.getFaces(vof, a_dir, otherSide);
Real thisVel = a_primState(vof, inormVelVar);
Real otherVel = 0.;
for(int iface = 0; iface < faces.size(); iface++)
{
VolIndex otherVoF = faces[iface].getVoF(otherSide);
otherVel += a_primState(otherVoF,inormVelVar);
}
if(faces.size() > 0)
{
otherVel /= Real(faces.size());
Real slope;
if(sit() == Side::Lo)
{
slope = otherVel - thisVel;
}
else
{
slope = thisVel - otherVel;
}
//trick to make sure state will not change sign
if(slope*thisVel < 0)
{
a_deltaPrim(vof, inormVelVar) = 0.0;
}
else
{ //slope and vel same sign
Real rsign = 1.0;
if(thisVel < 0.0)
rsign = -1.0;
//told you this was odd.
Real dvmin = Min(Abs(slope), Abs((Real)2.*thisVel));
a_deltaPrim(vof, inormVelVar) = rsign*dvmin;
}
}
else //no faces on high side of low boundary vof
{
a_deltaPrim(vof, inormVelVar) = 0.0;
}
} //end loop over irregular vofs at boundary
}
} //end loop over boundary sides
}
void
EBPlanarShockIBC::
fluxBC(EBFluxFAB& a_flux,
const EBCellFAB& a_primCenter,
const EBCellFAB& a_primExtrap,
const Side::LoHiSide& a_side,
const Real& a_time,
const EBISBox& a_ebisBox,
const DataIndex& a_dit,
const Box& a_box,
const Box& a_faceBox,
const int& a_dir)
{
CH_assert(m_isDefined);
CH_assert(m_isFortranCommonSet);
CH_assert(!m_domain.isPeriodic(a_dir));
Box FBox = a_flux[a_dir].getSingleValuedFAB().box();
Box cellBox = FBox;
int numFlux = a_flux[a_dir].nComp();
// Determine which side and thus shifting directions
int isign = sign(a_side);
cellBox.shiftHalf(a_dir,isign);
// Is there a domain boundary next to this grid
if (!m_domain.contains(cellBox))
{
cellBox &= m_domain;
// Find the strip of cells next to the domain boundary
Box boundaryBox = bdryBox(cellBox, a_dir, a_side, 1);
// Shift things to all line up correctly
boundaryBox.shiftHalf(a_dir,-isign);
BaseFab<Real>& regFlux = a_flux[a_dir].getSingleValuedFAB();
const BaseFab<Real>& regPrimExtrap = a_primExtrap.getSingleValuedFAB();
// Set the boundary fluxes
bool inbackofshock =
(!m_shockbackward && a_side == Side::Lo) ||
( m_shockbackward && a_side == Side::Hi);
if(a_dir == m_shocknorm && inbackofshock)
{
regFlux.shiftHalf(a_dir,-isign);
// Set the boundary fluxes
/**/
FORT_EXTRAPBC(CHF_FRA(regFlux),
CHF_CONST_FRA(regPrimExtrap),
CHF_CONST_REAL(m_dx),
CHF_CONST_INT(a_dir),
CHF_BOX(boundaryBox));
/**/
// Shift returned fluxes to be face centered
regFlux.shiftHalf(a_dir,isign);
//now for the multivalued cells. Since it is pointwise,
//the regular calc is correct for all single-valued cells.
IntVectSet ivs = a_ebisBox.getMultiCells(boundaryBox);
for(VoFIterator vofit(ivs, a_ebisBox.getEBGraph()); vofit.ok(); ++vofit)
{
const VolIndex& vof = vofit();
Vector<Real> qgdnv(QNUM);
Vector<Real> fluxv(FNUM);
for(int ivar = 0; ivar < QNUM; ivar++)
{
qgdnv[ivar] = a_primExtrap(vof, ivar);
}
Vector<FaceIndex> bndryFaces =
a_ebisBox.getFaces(vof, a_dir, a_side);
for(int iface= 0; iface < bndryFaces.size(); iface++)
{
/**/
FORT_POINTGETFLUX(CHF_VR(fluxv),
CHF_VR(qgdnv),
CHF_CONST_INT(a_dir));
/**/
const FaceIndex& face = bndryFaces[iface];
for(int ivar = 0; ivar < FNUM; ivar++)
{
a_flux[a_dir](face, ivar) = fluxv[ivar];
}
}
}
} //end if on the back side of the shock
else
{
regFlux.shiftHalf(a_dir,-isign);
//solid wall bcs
FORT_SLIPWALLSOLIDBC(CHF_FRA(regFlux),
CHF_CONST_FRA(regPrimExtrap),
CHF_CONST_INT(isign),
CHF_CONST_REAL(m_dx),
CHF_CONST_INT(a_dir),
CHF_BOX(boundaryBox));
// Shift returned fluxes to be face centered
regFlux.shiftHalf(a_dir,isign);
int inormMomVar = CMOMX + a_dir;
int inormVelVar = QVELX + a_dir;
//now for the multivalued cells. Since it is pointwise,
//the regular calc is correct for all single-valued cells.
IntVectSet ivs = a_ebisBox.getMultiCells(boundaryBox);
for(VoFIterator vofit(ivs, a_ebisBox.getEBGraph()); vofit.ok(); ++vofit)
{
const VolIndex& vof = vofit();
//set all fluxes except normal momentum to zero.
//set normal momemtum flux to sign(normal)*pressure
Vector<FaceIndex> bndryFaces = a_ebisBox.getFaces(vof, a_dir, a_side);
for(int iface= 0; iface < bndryFaces.size(); iface++)
{
const FaceIndex& face = bndryFaces[iface];
//set all fluxes to zero then fix normal momentum
for(int ivar = 0; ivar < numFlux; ivar++)
{
a_flux[a_dir](face, ivar) = 0;
}
Real press = a_primExtrap(vof, QPRES);
Real dense = a_primExtrap(vof, QRHO);
Real unorm = a_primExtrap(vof, inormVelVar);
Real speed = sqrt(m_gamma*press/dense);
a_flux[a_dir](face, inormMomVar) =
press + isign*dense*unorm*speed;
}
}
}
}
}
void
kappaDivergence(EBCellFAB& a_divF,
const EBFluxFAB& a_flux,
const EBISBox& a_ebisBox,
const Box& a_box,
const Real& a_dx)
{
//set the divergence initially to zero
//then loop through directions and increment the divergence
//with each directions flux difference.
a_divF.setVal(0.0);
BaseFab<Real>& regDivF = a_divF.getSingleValuedFAB();
regDivF.setVal(0.);
for (int idir = 0; idir < SpaceDim; idir++)
{
//update for the regular vofs in the nonconservative
//case works for all single valued vofs.
/* do the regular vofs */
/**/
const EBFaceFAB& fluxDir = a_flux[idir];
const BaseFab<Real>& regFluxDir = fluxDir.getSingleValuedFAB();
int ncons = 1;
FORT_DIVERGEF( CHF_BOX(a_box),
CHF_FRA(regDivF),
CHF_CONST_FRA(regFluxDir),
CHF_CONST_INT(idir),
CHF_CONST_INT(ncons),
CHF_CONST_REAL(a_dx));
/**/
}
//update the irregular vofs using conservative diff
IntVectSet ivsIrreg = a_ebisBox.getIrregIVS(a_box);
for (VoFIterator vofit(ivsIrreg, a_ebisBox.getEBGraph()); vofit.ok(); ++vofit)
{
const VolIndex& vof = vofit();
//divergence was set in regular update. we reset it
// to zero and recalc.
Real update = 0.;
for ( int idir = 0; idir < SpaceDim; idir++)
{
const EBFaceFAB& fluxDir = a_flux[idir];
for (SideIterator sit; sit.ok(); ++sit)
{
int isign = sign(sit());
Vector<FaceIndex> faces =
a_ebisBox.getFaces(vof, idir, sit());
for (int iface = 0; iface < faces.size(); iface++)
{
const FaceIndex& face = faces[iface];
Real areaFrac = a_ebisBox.areaFrac(face);
Real faceFlux =fluxDir(face, 0);
update += isign*areaFrac*faceFlux;
}
}
}
//add EB boundary condtions in divergence
const IntVect& iv = vof.gridIndex();
Real bndryArea = a_ebisBox.bndryArea(vof);
RealVect bndryCent = a_ebisBox.bndryCentroid(vof);
RealVect normal = a_ebisBox.normal(vof);
RealVect bndryLoc;
RealVect exactF;
for (int idir = 0; idir < SpaceDim; idir++)
{
bndryLoc[idir] = a_dx*(iv[idir] + 0.5 + bndryCent[idir]);
}
for (int idir = 0; idir < SpaceDim; idir++)
{
exactF[idir] = exactFlux(bndryLoc, idir);
}
Real bndryFlux = PolyGeom::dot(exactF, normal);
update -= bndryFlux*bndryArea;
update /= a_dx; //note NOT divided by volfrac
a_divF(vof, 0) = update;
}
}
void
EBScalarAdvectBC::
fluxBC(EBFluxFAB& a_facePrim,
const EBCellFAB& a_Wcenter,
const EBCellFAB& a_Wextrap,
const Side::LoHiSide& a_side,
const Real& a_time,
const EBISBox& a_ebisBox,
const DataIndex& a_dit,
const Box& a_box,
const Box& a_faceBox,
const int& a_faceDir)
{
// a_facePrim.setVal(1.0);
CH_assert(m_isDefined);
CH_assert(!m_domain.isPeriodic(a_faceDir));
CH_assert(m_injectionBCFunc != NULL);
//gets face centered region of data
Box FBox = a_facePrim[a_faceDir].getRegion();
Box cellBox = a_faceBox;
CH_assert(a_facePrim[a_faceDir].nComp() == 1);
// Determine which side and thus shifting directions
int isign = sign(a_side);
cellBox.shiftHalf(a_faceDir,isign);
//figure out if we are on a wall and if its an inflow and the inflow value
bool isInflow = ((a_side == Side::Lo) && (a_faceDir==m_inflowDir));
bool isOutflow = ((a_side == Side::Hi) && (a_faceDir==m_inflowDir));
// Is there a domain boundary next to this grid
if (!m_domain.contains(cellBox))
{
cellBox &= m_domain;
// Find the strip of cells next to the domain boundary
Box bndryBox = adjCellBox(cellBox, a_faceDir, a_side, 1);
// Shift things to all line up correctly
bndryBox.shift(a_faceDir,-isign);
IntVectSet ivs(bndryBox);
Real scalVal, velBC;
for (VoFIterator vofit(ivs, a_ebisBox.getEBGraph()); vofit.ok(); ++vofit)
{
const VolIndex& vof = vofit();
Vector<FaceIndex> bndryFaces = a_ebisBox.getFaces(vof, a_faceDir, a_side);
for (int iface= 0; iface < bndryFaces.size(); iface++)
{
//this all will work for the case of spatially varying inflow
//for inhomogeneous other faces, this is wrong.
const FaceIndex& face = bndryFaces[iface];
if (isOutflow) // assuming injection is from the outflow face (injectibe into counter flow)
{
// figure out if you are inside or outside the tube
// inside the tube scalar injection val = 1.0; outside, extrap
RealVect prob_lo = RealVect::Zero;
const RealVect tubeCenter = m_injectionBCFunc->getTubeCenter();
Real tubeRadius = m_injectionBCFunc->getTubeRadius();
bool isInsideTube = false;
const RealVect loc = EBArith::getFaceLocation(face, m_dx, prob_lo);
CH_assert(loc[m_inflowDir] == tubeCenter[m_inflowDir]);
Real radius = m_injectionBCFunc->getRadius(loc);
// start hardwire
Real wallThickness = 0.075;
ParmParse pp;
pp.get("wall_thickness",wallThickness);
Real bcFactor = 0.5; // % of outflow face to be set to inflow condition
tubeRadius += wallThickness * bcFactor /2.0;
if (radius <= tubeRadius)
{
isInsideTube = true;
}
isInsideTube ? scalVal = m_scalarInflowValue : scalVal = a_Wextrap(vof, 0);
} // end if outflow
else if (isInflow)
{
scalVal = 0.0;
}
else // solid wall
{
scalVal = 0.0;
}
a_facePrim[a_faceDir](face,0) = scalVal;
} // end face loop
} // end vofit loop
}
}
void
InflowOutflowAdvectBC::
fluxBC(EBFluxFAB& a_primGdnv,
const EBCellFAB& a_primCenter,
const EBCellFAB& a_primExtrap,
const Side::LoHiSide& a_side,
const Real& a_time,
const EBISBox& a_ebisBox,
const DataIndex& a_dit,
const Box& a_box,
const Box& a_faceBox,
const int& a_dir)
{
CH_assert(m_isDefined);
CH_assert(!m_domain.isPeriodic(a_dir));
//gets face centered region of data
Box FBox = a_primGdnv[a_dir].getRegion();
Box cellBox = a_faceBox;
CH_assert(a_primGdnv[a_dir].nComp() == 1);
// Determine which side and thus shifting directions
int isign = sign(a_side);
cellBox.shiftHalf(a_dir,isign);
//figure out if we are on a wall and if its an inflow and the inflow value
bool isInflow = ((a_side == Side::Lo) && (a_dir==m_flowDir));
bool isOutflow = ((a_side == Side::Hi) && (a_dir==m_flowDir));
// Is there a domain boundary next to this grid
if (!m_domain.contains(cellBox))
{
cellBox &= m_domain;
// Find the strip of cells next to the domain boundary
Box bndryBox = adjCellBox(cellBox, a_dir, a_side, 1);
// Shift things to all line up correctly
bndryBox.shift(a_dir,-isign);
IntVectSet ivs(bndryBox);
for (VoFIterator vofit(ivs, a_ebisBox.getEBGraph()); vofit.ok(); ++vofit)
{
const VolIndex& vof = vofit();
Vector<FaceIndex> bndryFaces = a_ebisBox.getFaces(vof, a_dir, a_side);
for (int iface= 0; iface < bndryFaces.size(); iface++)
{
//this all will work for the case of spatially varying inflow
//for inhomogeneous other faces, this is wrong.
const FaceIndex& face = bndryFaces[iface];
Real velComp = 1.e99;
if (isInflow && (m_velComp == m_flowDir))
{
if (!m_doJet1PoiseInflow)
{
velComp = m_jet1inflowVel;
}
else if (m_doJet1PoiseInflow)
{
//set coordinates based on slip walls
RealVect prob_lo = RealVect::Zero;
//assumes inflow boundary is always on lo side of domain
const RealVect loc = EBArith::getFaceLocation(face, m_dx, prob_lo);
Real radius = m_jet1PoiseInflowFunc->getRadius(loc);
velComp = m_jet1PoiseInflowFunc->getVel(radius)[m_flowDir];
}
}
else if (isInflow && (m_velComp != m_flowDir))
{
velComp = 0.0;
}
else if (isOutflow)
{
if (!m_doJet2)
{
velComp = a_primExtrap(vof, 0);
}
else if (m_doJet2)
{
RealVect prob_lo = RealVect::Zero;
const RealVect tubeCenter = m_jet2PoiseInflowFunc->getTubeCenter();
Real tubeRadius = m_jet2PoiseInflowFunc->getTubeRadius();
bool isInsideTube = false;
const RealVect loc = EBArith::getFaceLocation(face, m_dx, prob_lo);
CH_assert(loc[m_flowDir] == tubeCenter[m_flowDir]);
Real radius = m_jet2PoiseInflowFunc->getRadius(loc);
// start hardwire
Real wallThickness = 0.075;
ParmParse pp;
pp.get("wall_thickness",wallThickness);
Real bcFactor = 0.5; // % of outflow face to be set to inflow condition
tubeRadius += wallThickness * bcFactor /2.0;
// end hardwire
if (radius <= tubeRadius)
{
isInsideTube = true;
}
if (isInsideTube && (m_velComp == m_flowDir))
{
if (m_doJet2PoiseInflow)
{
velComp = m_jet2PoiseInflowFunc->getVel(radius)[m_flowDir];
}
else if (!m_doJet2PoiseInflow)
{
velComp = m_jet2inflowVel;
}
}
else if (isInsideTube && (m_velComp != m_flowDir))
{
velComp = 0.0;
}
else if (!(isInsideTube))
{
velComp = a_primExtrap(vof, 0);
}
}
}
else //solid wall
{
if (a_dir == m_velComp)
{
velComp = 0.0;
}
else
{
velComp = a_primExtrap(vof, 0);
}
}
a_primGdnv[a_dir](face, 0) = velComp;
}
}
}
}
void
EBGradDivFilter::
cellGradient(EBCellFAB& a_gradDiv,
const EBCellFAB& a_gradVel,
const EBCellFAB& a_vel,
const EBFluxFAB& a_fluxVel,
const EBFluxFAB& a_div,
const Box& a_grid,
const EBISBox& a_ebisBox,
const DataIndex& a_dataIndex,
bool a_multiplyByLambda,
bool a_noExtrapToCovered)
{
CH_TIME("EBGradDivFilter::cellGradient");
int icomp = 0;
EBCellFAB& lambdaFAB = m_lambda[a_dataIndex];
IntVectSet irregIVS = a_ebisBox.getIrregIVS(a_grid);
for (int faceDir = 0; faceDir < SpaceDim; faceDir++)
{
const EBFaceFAB& faceDiv = a_div[faceDir];
const BaseFab<Real>& regFaceDiv = faceDiv.getSingleValuedFAB();
const BaseFab<Real>& regLambda = lambdaFAB.getSingleValuedFAB();
BaseFab<Real>& regGradDiv = a_gradDiv.getSingleValuedFAB();
int imultByLambda = 0;
if (a_multiplyByLambda)
{
imultByLambda = 1;
}
FORT_EBGDFCELLGRAD(CHF_FRA1(regGradDiv, faceDir),
CHF_CONST_FRA1(regFaceDiv, icomp),
CHF_CONST_FRA1(regLambda, icomp),
CHF_BOX(a_grid),
CHF_CONST_REAL(m_dxFine[faceDir]),
CHF_CONST_INT(faceDir),
CHF_CONST_INT(imultByLambda));
//nonconservative gradient
for (VoFIterator vofit(irregIVS, a_ebisBox.getEBGraph()); vofit.ok(); ++vofit)
{
const VolIndex& vof = vofit();
Real gradVal = 0.0;
Vector<FaceIndex> facesHi = a_ebisBox.getFaces(vof, faceDir, Side::Hi);
Vector<FaceIndex> facesLo = a_ebisBox.getFaces(vof, faceDir, Side::Lo);
bool zeroGrad = a_noExtrapToCovered && ((facesHi.size() == 0) || (facesLo.size() == 0));
if (zeroGrad)
{
gradVal = 0;
}
else
{
Real valHi= 0;
if (facesHi.size() > 0)
{
for (int iface = 0; iface < facesHi.size(); iface++)
{
valHi += faceDiv(facesHi[iface], icomp);
}
valHi /= facesHi.size();
}
else
{
valHi = ccpGetCoveredExtrapValue(vof, faceDir, Side::Hi,
faceDiv, a_ebisBox, a_grid,
m_domainFine, m_dxFine, icomp);
}
Real valLo= 0;
if (facesLo.size() > 0)
{
for (int iface = 0; iface < facesLo.size(); iface++)
{
valLo += faceDiv(facesLo[iface], 0);
}
valLo /= facesLo.size();
}
else
{
valLo = ccpGetCoveredExtrapValue(vof, faceDir, Side::Lo ,
faceDiv, a_ebisBox, a_grid,
m_domainFine, m_dxFine, icomp);
}
gradVal = (valHi-valLo)/(m_dxFine[faceDir]);
//multiply the lambda in since we have the area fractions lying about
if (a_multiplyByLambda)
{
Real lambda = lambdaFAB(vof, 0);
gradVal *= lambda;
}
}
a_gradDiv(vof, faceDir) = gradVal;
}
}
}
void
EBGradDivFilter::
gradVel(EBCellFAB& a_gradVel,
const EBCellFAB& a_vel,
const Box& a_grid,
const EBISBox& a_ebisBox,
bool a_lowOrderOneSide)
{
CH_TIME("EBGradDivFilter::gradVel");
CH_assert(a_gradVel.nComp() == SpaceDim*SpaceDim);
CH_assert(a_vel.nComp() == SpaceDim);
int iLowOrderOneSide = 0;
if (a_lowOrderOneSide)
{
iLowOrderOneSide = 1;
}
for (int derivDir = 0; derivDir < SpaceDim; derivDir++)
{
Box loBox, hiBox, centerBox;
int hasLo, hasHi;
EBArith::loHiCenter(loBox, hasLo, hiBox, hasHi, centerBox, m_domainFine, a_grid, derivDir);
for (int velDir = 0; velDir < SpaceDim; velDir++)
{
BaseFab<Real>& regGradVel = a_gradVel.getSingleValuedFAB();
const BaseFab<Real>& regVel = a_vel.getSingleValuedFAB();
int gradcomp = getGradComp(velDir, derivDir);
FORT_EBGDFGRADVEL(CHF_FRA1(regGradVel, gradcomp),
CHF_CONST_FRA1(regVel, velDir),
CHF_BOX(loBox),
CHF_INT(hasLo),
CHF_BOX(hiBox),
CHF_INT(hasHi),
CHF_BOX(centerBox),
CHF_CONST_REAL(m_dxFine[derivDir]),
CHF_CONST_INT(derivDir),
CHF_CONST_INT(iLowOrderOneSide));
IntVectSet ivsIrreg = a_ebisBox.getIrregIVS(a_grid);
if (!a_lowOrderOneSide)
{
ivsIrreg.grow(1);
ivsIrreg &= a_grid;
}
for (VoFIterator vofit(ivsIrreg, a_ebisBox.getEBGraph()); vofit.ok(); ++vofit)
{
const VolIndex& vof = vofit();
bool hasHi, hasLo;
VolIndex vofHi, vofLo;
Vector<FaceIndex> facesHi = a_ebisBox.getFaces(vof, derivDir, Side::Hi);
Vector<FaceIndex> facesLo = a_ebisBox.getFaces(vof, derivDir, Side::Lo);
hasHi = (facesHi.size() == 1) && (!facesHi[0].isBoundary());
hasLo = (facesLo.size() == 1) && (!facesLo[0].isBoundary());
if (hasLo)
{
vofLo = facesLo[0].getVoF(Side::Lo);
}
if (hasHi)
{
vofHi = facesHi[0].getVoF(Side::Hi);
}
Real gradVal;
if (hasHi && hasLo)
{
gradVal = (a_vel(vofHi, velDir) - a_vel(vofLo, velDir))/(2.*m_dxFine[derivDir]);
}
else if (hasHi || hasLo)
{
//do one-sided diff
CH_assert(!(hasHi && hasLo));
Side::LoHiSide side;
VolIndex vofNear;
if (hasLo)
{
side = Side::Lo;
vofNear = vofLo;
}
else
{
side = Side::Hi;
vofNear = vofHi;
}
int isign = sign(side);
Vector<FaceIndex> facesFar = a_ebisBox.getFaces(vofNear, derivDir, side);
bool hasVoFFar = (facesFar.size()==1) && (!facesFar[0].isBoundary());
Real valStart = a_vel(vof, velDir);
Real valNear = a_vel(vofNear, velDir);
if (hasVoFFar && !a_lowOrderOneSide)
{
VolIndex vofFar = facesFar[0].getVoF(side);
Real valFar = a_vel(vofFar, velDir);
gradVal = (4*(valNear - valStart)- (valFar-valStart))/(2.*isign*m_dxFine[derivDir]);
}
else
{
//do not have another point for stencil or specified low order one-sided.
//drop order of derivative
gradVal = (valNear - valStart)/(isign*m_dxFine[derivDir]);
}
}
else
{
//only have one point, can only set gradient to zero
gradVal = 0.0;
}
a_gradVel(vof, gradcomp) = gradVal;
}
}
}
}
Real
EBGradDivFilter::
getDomainDivergence(const EBCellFAB& a_gradVel,
const EBCellFAB& a_vel,
const EBFluxFAB& a_fluxVel,
const Box& a_grid,
const EBISBox& a_ebisBox,
const int& a_faceDir,
const FaceIndex& a_face,
const Side::LoHiSide& a_side)
{
CH_TIME("EBGradDivFilter::getDomainDivergence");
Real divVel;
CH_assert(a_fluxVel.nComp() == 1);
Real velB = a_fluxVel[a_faceDir](a_face, 0);
//compute normal derivative.
//need second-order derivative at the boundary so
//given u_b, u_i, u_i+1,
//ux_b = (9u_i - u_i+1 - 8u_b)/(6 dx)
VolIndex vofNear, vofStart;
Real valNear=0;
Real valStart =0;
bool hasVoFNear;
vofStart = a_face.getVoF(flip(a_side));
valStart = a_vel(vofStart, a_faceDir);
int iflipsign = sign(flip(a_side));
Real rsign = Real(iflipsign);
Vector<FaceIndex> facesNear = a_ebisBox.getFaces(vofStart, a_faceDir, flip(a_side));
hasVoFNear = (facesNear.size() == 1);
if (hasVoFNear)
{
vofNear = facesNear[0].getVoF(flip(a_side));
valNear = a_vel(vofNear, a_faceDir);
}
Real hsign = rsign*m_dxFine[a_faceDir];
if (hasVoFNear)
{
divVel = (2.25*(valStart-velB) - 0.25*(valNear-velB))/(0.75*hsign);
}
else
{
//if there is no farther away value, drop order of derivative
divVel = (valStart - velB)/(0.5*hsign);
}
//now add in tangential derivatives of tangential velocities
//using extrapolated gradients
for (int tanDir = 0; tanDir< SpaceDim; tanDir++)
{
if (tanDir != a_faceDir)
{
Real gradVel = 0.0;
int gradcomp = getGradComp(tanDir, tanDir);
if (hasVoFNear)
{
Real gradNear = a_gradVel(vofNear, gradcomp);
Real gradStart = a_gradVel(vofStart, gradcomp);
gradVel = 1.5*gradStart - 0.5*gradNear;
}
else
{
Real gradStart = a_gradVel(vofStart, gradcomp);
gradVel = gradStart;
}
divVel += gradVel;
}
}
return divVel;
}