Engine updates: parallelisation of topo changes

This commit is contained in:
Hrvoje Jasak 2011-05-27 20:38:01 +01:00
parent dbdb3f2d65
commit 6208a5ccd1
12 changed files with 436 additions and 341 deletions

View file

@ -9,7 +9,6 @@
forAll(valves_, valveI)
{
vector valveVel =
valves_[valveI].curVelocity()*valves_[valveI].cs().axis();
@ -17,10 +16,9 @@
{
valveVel = vector::zero;
}
{
// label movingPtsIndex = pZones.findZoneID("movingPointsV"+Foam::name(valveI + 1));
// const labelList& movingPointsV = pZones[movingPtsIndex];
/*
@ -28,17 +26,17 @@
{
constrainedPoints.append(movingPointsV[mpI]);
constrainedVelocity.append(valveVel);
constraintSize++;
}
*/
label movingCellsIndex = cZones.findZoneID("movingCellsZoneV"+Foam::name(valveI + 1));
const labelList& movingCellsV = cZones[movingCellsIndex];
labelList movingPointsV;
boolList count(newPoints.size(), false);
forAll(movingCellsV, cellI)
{
const labelList& curCellPoints = cp[movingCellsV[cellI]];
@ -76,17 +74,15 @@
{
constrainedPoints.append(movingPointsV[mpI]);
constrainedVelocity.append(valveVel);
constraintSize++;
}
}
{
// label staticPtsIndex = pZones.findZoneID("staticPointsV"+Foam::name(valveI + 1));
// const labelList& staticPointsV = pZones[staticPtsIndex];
/*
/*
forAll(staticPointsV, spI)
{
constrainedPoints.append(staticPointsV[spI]);
@ -101,7 +97,7 @@
labelList staticPointsV;
boolList count(newPoints.size(), false);
forAll(staticCellsV, cellI)
{
const labelList& curCellPoints = cp[staticCellsV[cellI]];
@ -134,7 +130,7 @@
nCounted++;
}
}
forAll(staticPointsV, spI)
{
constrainedPoints.append(staticPointsV[spI]);
@ -145,16 +141,16 @@
}
}
if(piston().patchID().active())
{
vector pistonVel =
piston().cs().axis()*engineTime_.pistonSpeed().value();
/*
/*
label pistonPtsIndex = pZones.findZoneID("movingPistonPoints");
const labelList& movingPointsP = pZones[pistonPtsIndex];
forAll(movingPointsP, mpI)
{
constrainedPoints.append(movingPointsP[mpI]);
@ -165,11 +161,11 @@
label pistonCellsIndex = cZones.findZoneID("movingPistonCells");
const labelList& movingCellsP = cZones[pistonCellsIndex];
labelList movingPointsP;
boolList count(newPoints.size(), false);
forAll(movingCellsP, cellI)
{
const labelList& curCellPoints = cp[movingCellsP[cellI]];
@ -202,8 +198,7 @@
nCounted++;
}
}
forAll(movingPointsP, mpI)
{
constrainedPoints.append(movingPointsP[mpI]);
@ -213,6 +208,4 @@
}
}

View file

@ -301,8 +301,6 @@ void Foam::simpleTwoStroke::addZonesAndModifiers()
nFaceZones++;
Info << "cut p" << endl;
pz[nPointZones] = new pointZone
(
"cutPointZone",

View file

@ -0,0 +1,60 @@
if (piston().patchID().active())
{
// Add faces for piston layering
// Note: because of operation of layer addition/removal
// (reduce function in layer addition/removal thickness)
// the layering modifier needs to be present on all processors
// even if the patch size is zero
// HJ, 7/Mar/2011
faceSet pistonFaceSet(*this, piston().pistonFaceSetName());
boolList flipPistonFaces(pistonFaceSet.toc().size(), false);
label nSet = pistonFaceSet.toc().size();
label nFlip = 0;
forAll (flipPistonFaces, facei)
{
scalar scalProd =
(faceAreas()[pistonFaceSet.toc()[facei]] & vector(0, 0, 1));
if (scalProd < 0)
{
flipPistonFaces[facei] = true;
nFlip++;
}
}
Info << "nSet = " << nSet << endl;
Info << "nFlip = " << nFlip << endl;
fz[nFaceZones] =
(
new faceZone
(
"pistonLayerFaces",
pistonFaceSet.toc(),
flipPistonFaces,
nFaceZones,
faceZones()
)
);
nFaceZones++;
cellSet movingPistonCells(*this, piston().pistonCellSetName());
Info<< "Adding piston cell set" << endl;
cz[nCellZones] =
(
new cellZone
(
"pistonCells",
movingPistonCells.toc(),
nCellZones,
cellZones()
)
);
nCellZones++;
}

View file

@ -62,25 +62,24 @@ void Foam::twoStrokeEngine::addZonesAndModifiers()
return;
}
Info << "checkAndCalculate()" << endl;
checkAndCalculate();
Info<< "Time = " << engTime().theta() << endl
<< "Adding zones to the engine mesh" << endl;
//fz = 4: virtual piston, outSidePort, insidePort, cutFaceZone
//pz = 2: piston points, cutPointZone
//cz = 1: moving mask
// Zones to add
// fz = 4: virtual piston, outSidePort, insidePort, cutFaceZone
// pz = 2: piston points, cutPointZone
// cz = 1: moving mask
label nPorts = scavInCylPatches_.size();
DynamicList<pointZone*> pz(2 + nPorts);
DynamicList<faceZone*> fz(3*nPorts + 1);
List<pointZone*> pz(nPorts + 2);
List<faceZone*> fz(3*nPorts + 1);
// Added piston cells and head cells
DynamicList<cellZone*> cz(3);
List<cellZone*> cz(3);
label nPointZones = 0;
label nFaceZones = 0;
@ -88,24 +87,11 @@ void Foam::twoStrokeEngine::addZonesAndModifiers()
Info << "Adding piston layer faces" << endl;
# include "addPistonLayerHrv.H"
# include "addPistonLayer.H"
// adding head points (does not move)
// Add head points that do not move
{
// pointSet headPointSet(*this, headPointsSetName_);
// pz[nPointZones] =
// new pointZone
// (
// "headPoints",
// headPointSet.toc(),
// nPointZones,
// pointZones()
// );
// nPointZones++;
cellSet headCellSet(*this, headCellsSetName_);
cz[nCellZones] =
@ -120,9 +106,9 @@ void Foam::twoStrokeEngine::addZonesAndModifiers()
nCellZones++;
}
// Sliding interface for scavenging ports
// Sliding interface for scavenging ports
if(nPorts > 0)
if (nPorts > 0)
{
forAll(scavInCylPatches_, patchi)
{
@ -133,76 +119,85 @@ void Foam::twoStrokeEngine::addZonesAndModifiers()
boundaryMesh().findPatchID(scavInCylPatches_[patchi])
];
labelList isf(innerScav.size());
forAll (isf, i)
{
isf[i] = innerScav.start() + i;
}
fz[nFaceZones] = new faceZone
(
scavInCylPatches_[patchi] + "Zone" + Foam::name(patchi + 1),
isf,
boolList(innerScav.size(), false),
nFaceZones,
faceZones()
);
nFaceZones++;
// Outer slider
const polyPatch& outerScav =
boundaryMesh()
[
boundaryMesh().findPatchID(scavInPortPatches_[patchi])
];
labelList osf(outerScav.size());
forAll (osf, i)
Pout<< "A: " << innerScav.size() << " " << outerScav.size()
<< endl;
// Add zone if both patches has got faces
if (!innerScav.empty() && !outerScav.empty())
{
osf[i] = outerScav.start() + i;
// Inner
labelList isf(innerScav.size());
forAll (isf, i)
{
isf[i] = innerScav.start() + i;
}
fz[nFaceZones] = new faceZone
(
scavInCylPatches_[patchi] + "Zone"
+ Foam::name(patchi + 1),
isf,
boolList(innerScav.size(), false),
nFaceZones,
faceZones()
);
nFaceZones++;
// Outer
labelList osf(outerScav.size());
forAll (osf, i)
{
osf[i] = outerScav.start() + i;
}
fz[nFaceZones] = new faceZone
(
scavInPortPatches_[patchi] + "Zone"
+ Foam::name(patchi + 1),
osf,
boolList(outerScav.size(), false),
nFaceZones,
faceZones()
);
nFaceZones++;
// Cut faces
fz[nFaceZones] = new faceZone
(
"cutFaceZone" + Foam::name(patchi + 1),
labelList(0),
boolList(0, false),
nFaceZones,
faceZones()
);
nFaceZones++;
// Cut points
pz[nPointZones] = new pointZone
(
"cutPointZone" + Foam::name(patchi + 1),
labelList(0),
nPointZones,
pointZones()
);
nPointZones++;
}
fz[nFaceZones] = new faceZone
(
scavInPortPatches_[patchi] + "Zone" + Foam::name(patchi + 1),
osf,
boolList(outerScav.size(), false),
nFaceZones,
faceZones()
);
nFaceZones++;
fz[nFaceZones] = new faceZone
(
"cutFaceZone" + Foam::name(patchi + 1),
labelList(0),
boolList(0, false),
nFaceZones,
faceZones()
);
nFaceZones++;
Info << "cut p" << endl;
pz[nPointZones] = new pointZone
(
"cutPointZone" + Foam::name(patchi + 1),
labelList(0),
nPointZones,
pointZones()
);
nPointZones++;
}
}
Info << "moving cells" << endl;
Info << "Adding moving cells zone" << endl;
{
cellSet movingCells(*this, movingCellSetName_);
@ -218,9 +213,7 @@ void Foam::twoStrokeEngine::addZonesAndModifiers()
nCellZones++;
}
Info << "moving cells added" << endl;
Info<< "Adding " << nPointZones << " point, "
Pout<< "Adding " << nPointZones << " point, "
<< nFaceZones << " face zones and " << nCellZones
<< " cell zones" << endl;
@ -229,40 +222,64 @@ void Foam::twoStrokeEngine::addZonesAndModifiers()
cz.setSize(nCellZones);
addZones(pz, fz, cz);
List<polyMeshModifier*> tm(1 + nPorts);
List<polyMeshModifier*> tm(nPorts + 1);
label nMods = 0;
// Add piston layer addition
# include "addPistonLayerAdditionRemovalMeshModifier.H"
if(nPorts > 0)
if (nPorts > 0)
{
forAll(scavInPortPatches_, i)
forAll (scavInPortPatches_, i)
{
topoChanger_.setSize(topoChanger_.size() + 1);
// Check if patches are present on local processor
const label sipID =
boundaryMesh().findPatchID(scavInPortPatches_[i]);
topoChanger_.set
(
nMods,
new slidingInterface
const label sicID =
boundaryMesh().findPatchID(scavInCylPatches_[i]);
if (sipID > -1 && sicID > -1)
{
if
(
"portCylinderInterface" + Foam::name(i + 1),
nMods,
topoChanger_,
scavInPortPatches_[i] + "Zone" + Foam::name(i + 1),
scavInCylPatches_[i] + "Zone" + Foam::name(i + 1),
"cutPointZone" + Foam::name(i + 1),
"cutFaceZone" + Foam::name(i + 1),
scavInPortPatches_[i],
scavInCylPatches_[i],
slidingInterface::INTEGRAL,
true, // Attach-detach action
intersection::VISIBLE // Projection algorithm
boundaryMesh()[sipID].size() > 0
&& boundaryMesh()[sicID].size() > 0
)
);
{
Pout<< "Adding slider for pair " << scavInPortPatches_[i]
<< " and " << scavInCylPatches_[i]
<< " with sizes "
<< boundaryMesh()[sipID].size() << " "
<< boundaryMesh()[sicID].size() << endl;
nMods++;
// Patches present. Add modifier
topoChanger_.setSize(topoChanger_.size() + 1);
topoChanger_.set
(
nMods,
new slidingInterface
(
"portCylinderInterface" + Foam::name(i + 1),
nMods,
topoChanger_,
scavInPortPatches_[i] + "Zone" + Foam::name(i + 1),
scavInCylPatches_[i] + "Zone" + Foam::name(i + 1),
"cutPointZone" + Foam::name(i + 1),
"cutFaceZone" + Foam::name(i + 1),
scavInPortPatches_[i],
scavInCylPatches_[i],
slidingInterface::INTEGRAL,
true, // Attach-detach action
intersection::VISIBLE // Projection algorithm
)
);
nMods++;
}
}
}
}

View file

@ -152,13 +152,13 @@ void Foam::twoStrokeEngine::setBoundaryVelocity(volVectorField& U)
// On the piston movingWallVelocity is used.
// There is no need to update the piston velocity
// U.boundaryField()[piston().patchID().index()] = pistonVel;
forAll(scavInPortPatches_, patchi)
forAll (scavInPortPatches_, patchi)
{
U.boundaryField()
[boundaryMesh().findPatchID(scavInPortPatches_[patchi])] ==
pistonVel;
const label curPatchID =
boundaryMesh().findPatchID(scavInPortPatches_[patchi]);
U.boundaryField()[curPatchID] == pistonVel;
}
}

View file

@ -61,21 +61,26 @@ void Foam::twoStrokeEngine::calcMovingMasks() const
const cellList& c = cells();
const faceList& f = allFaces();
const labelList& cellAddr =
cellZones()[cellZones().findZoneID("movingCells")];
const label movingCellsID = cellZones().findZoneID("movingCells");
forAll (cellAddr, cellI)
// If moving cell zone is found, mark the vertices
if (movingCellsID > -1)
{
const cell& curCell = c[cellAddr[cellI]];
const labelList& cellAddr = cellZones()[movingCellsID];
forAll (curCell, faceI)
forAll (cellAddr, cellI)
{
// Mark all the points as moving
const face& curFace = f[curCell[faceI]];
const cell& curCell = c[cellAddr[cellI]];
forAll (curFace, pointI)
forAll (curCell, faceI)
{
movingPointsMask[curFace[pointI]] = 1;
// Mark all the points as moving
const face& curFace = f[curCell[faceI]];
forAll (curFace, pointI)
{
movingPointsMask[curFace[pointI]] = 1;
}
}
}
}

View file

@ -44,9 +44,8 @@ void Foam::twoStrokeEngine::checkAndCalculate()
label cylinderHeadIndex = -1;
bool foundCylinderHead = false;
forAll(boundary(), i)
forAll (boundary(), i)
{
Info << boundary()[i].name() << endl;
if (boundary()[i].name() == "piston")
{
pistonIndex = i;
@ -111,34 +110,31 @@ void Foam::twoStrokeEngine::checkAndCalculate()
}
}
void Foam::twoStrokeEngine::setVirtualPistonPosition()
{
label pistonFaceIndex = faceZones().findZoneID("pistonLayerFaces");
bool foundPistonFace = (pistonFaceIndex != -1);
Info << "piston face index = " << pistonFaceIndex << endl;
if(!foundPistonFace)
if(pistonFaceIndex == -1)
{
FatalErrorIn("Foam::twoStrokeEngine::setVirtualPistonPosition()")
<< " : cannot find the pistonLayerFaces"
<< exit(FatalError);
<< "Cannot find the pistonLayerFaces"
<< abort(FatalError);
}
const labelList& pistonFaces = faceZones()[pistonFaceIndex];
forAll(pistonFaces, i)
{
const face& f = faces()[pistonFaces[i]];
const labelList& pistonPoints =
faceZones()[pistonFaceIndex]().meshPoints();
// should loop over facepoints...
forAll(f, j)
{
virtualPistonPosition() =
Foam::max(virtualPistonPosition(), points()[f[j]].z());
}
const pointField& p = points();
forAll (pistonPoints, i)
{
virtualPistonPosition() =
Foam::max(virtualPistonPosition_, p[pistonPoints[i]].z());
}
reduce(virtualPistonPosition(), maxOp<scalar>());
}
// ************************************************************************* //

View file

@ -41,11 +41,11 @@ void Foam::twoStrokeEngine::makeLayersLive()
// Enable layering
forAll (morphs, modI)
{
if (typeid(morphs[modI]) == typeid(layerAdditionRemoval))
if (isA<layerAdditionRemoval>(morphs[modI]))
{
morphs[modI].enable();
}
else if (typeid(morphs[modI]) == typeid(slidingInterface))
else if (isA<slidingInterface>(morphs[modI]))
{
morphs[modI].disable();
}
@ -59,6 +59,7 @@ void Foam::twoStrokeEngine::makeLayersLive()
}
}
void Foam::twoStrokeEngine::makeSlidersLive()
{
const polyTopoChanger& morphs = topoChanger_;
@ -66,11 +67,11 @@ void Foam::twoStrokeEngine::makeSlidersLive()
// Enable sliding interface
forAll (morphs, modI)
{
if (typeid(morphs[modI]) == typeid(layerAdditionRemoval))
if (isA<layerAdditionRemoval>(morphs[modI]))
{
morphs[modI].disable();
}
else if (typeid(morphs[modI]) == typeid(slidingInterface))
else if (isA<slidingInterface>(morphs[modI]))
{
morphs[modI].enable();
}
@ -93,10 +94,9 @@ bool Foam::twoStrokeEngine::attached() const
forAll (morphs, modI)
{
if (typeid(morphs[modI]) == typeid(slidingInterface))
if (isA<slidingInterface>(morphs[modI]))
{
result =
result
result = result
|| refCast<const slidingInterface>(morphs[modI]).attached();
}
}
@ -104,7 +104,7 @@ bool Foam::twoStrokeEngine::attached() const
// Check thal all sliders are in sync (debug only)
forAll (morphs, modI)
{
if (typeid(morphs[modI]) == typeid(slidingInterface))
if (isA<slidingInterface>(morphs[modI]))
{
if
(
@ -120,6 +120,9 @@ bool Foam::twoStrokeEngine::attached() const
}
}
// Sync across processors
reduce(result, orOp<bool>());
return result;
}
@ -133,13 +136,25 @@ bool Foam::twoStrokeEngine::update()
makeSlidersLive();
// Changing topology by hand
autoPtr<mapPolyMesh> topoChangeMap5 = topoChanger_.changeMesh();
autoPtr<mapPolyMesh> topoChangeMap1 = topoChanger_.changeMesh();
if (topoChangeMap5->hasMotionPoints() && topoChangeMap5->morphing())
bool localMorphing1 = topoChangeMap1->morphing();
// Note: Since we are detaching, global morphing is always true
// HJ, 7/Mar/2011
if (localMorphing1)
{
Info << "Topology change; executing pre-motion after "
<< "sliding detach" << endl;
movePoints(topoChangeMap5->preMotionPoints());
movePoints(topoChangeMap1->preMotionPoints());
}
else
{
pointField newPoints = allPoints();
// Dummy motion
movePoints(newPoints);
}
Info << "sliding interfaces successfully decoupled!!!" << endl;
@ -154,25 +169,14 @@ bool Foam::twoStrokeEngine::update()
// Piston Layering
makeLayersLive();
// Changing topology by hand
// /* Tommaso, 23/5/2008
// Find piston mesh modifier
// Find piston mesh modifier if present on processor
const label pistonLayerID =
topoChanger_.findModifierID("pistonLayer");
if (pistonLayerID < 0)
{
FatalErrorIn("void engineFvMesh::moveAndMorph()")
<< "Piston modifier not found."
<< abort(FatalError);
}
scalar minLayerThickness = piston().minLayer();
scalar deltaZ = engTime().pistonDisplacement().value();
virtualPistonPosition() += deltaZ;
virtualPistonPosition_ += deltaZ;
Info << "virtualPistonPosition = " << virtualPistonPosition()
<< ", deckHeight = " << deckHeight()
@ -181,32 +185,45 @@ bool Foam::twoStrokeEngine::update()
if (realDeformation())
{
// Dectivate piston layer
Info << "Mesh deformation mode" << endl;
topoChanger_[pistonLayerID].disable();
if (pistonLayerID > -1)
{
Info << "Mesh deformation mode" << endl;
topoChanger_[pistonLayerID].disable();
}
}
else
{
// Activate piston layer
Info << "Piston layering mode" << endl;
topoChanger_[pistonLayerID].enable();
if (pistonLayerID > -1)
{
Info << "Piston layering mode" << endl;
topoChanger_[pistonLayerID].enable();
}
}
// Changing topology by hand
autoPtr<mapPolyMesh> topoChangeMap = topoChanger_.changeMesh();
autoPtr<mapPolyMesh> topoChangeMap2 = topoChanger_.changeMesh();
bool localMorphing2 = topoChangeMap2->morphing();
bool globalMorphing2 = localMorphing2;
// Work array for new points position.
pointField newPoints = allPoints();
const pointField& refPoints = allPoints();
if (topoChangeMap->morphing())
if (globalMorphing2)
{
if (topoChangeMap->hasMotionPoints())
Info<< "Topology change; executing pre-motion after "
<< "dynamic layering" << endl;
if (localMorphing2)
{
Info<< "Topology change; executing pre-motion after "
<< "dynamic layering" << endl;
movePoints(topoChangeMap->preMotionPoints());
newPoints = topoChangeMap->preMotionPoints();
movePoints(topoChangeMap2->preMotionPoints());
newPoints = topoChangeMap2->preMotionPoints();
}
else
{
movePoints(newPoints);
}
setV0();
@ -225,99 +242,92 @@ bool Foam::twoStrokeEngine::update()
labelList pistonPoints;
labelList headPoints;
{
label pistonCellIndex = cellZones().findZoneID("pistonCells");
if (pistonCellIndex < 0)
{
FatalErrorIn("bool twoStrokeEngine::update()")
<< "Cannot find cell zone pistonCells"
<< abort(FatalError);
}
const labelList& pistonCells = cellZones()[pistonCellIndex];
label headCellIndex = cellZones().findZoneID("headCells");
if (headCellIndex < 0)
{
FatalErrorIn("bool twoStrokeEngine::update()")
<< "Cannot find cell zone headCells"
<< abort(FatalError);
}
const labelList& headCells = cellZones()[headCellIndex];
// Get cell-point addressing
const labelListList& cp = cellPoints();
boolList count(newPoints.size(), false);
forAll (pistonCells, cellI)
{
const labelList& curCellPoints = cp[pistonCells[cellI]];
// Piston points
label pistonCellID = cellZones().findZoneID("pistonCells");
forAll (curCellPoints, i)
if (pistonCellID > -1)
{
const labelList& pistonCells = cellZones()[pistonCellID];
forAll (pistonCells, cellI)
{
count[curCellPoints[i]] = true;
const labelList& curCellPoints = cp[pistonCells[cellI]];
forAll (curCellPoints, i)
{
count[curCellPoints[i]] = true;
}
}
}
// Count the points
label nCounted = 0;
forAll (count, pointI)
{
if (count[pointI] == true)
// Count the points
label nCounted = 0;
forAll (count, pointI)
{
nCounted++;
if (count[pointI] == true)
{
nCounted++;
}
}
}
pistonPoints.setSize(nCounted);
pistonPoints.setSize(nCounted);
// Collect the points
nCounted = 0;
forAll (count, pointI)
{
if (count[pointI] == true)
// Collect the points
nCounted = 0;
forAll (count, pointI)
{
pistonPoints[nCounted] = pointI;
nCounted++;
if (count[pointI] == true)
{
pistonPoints[nCounted] = pointI;
nCounted++;
}
}
}
// Repeat for head points
count = false;
forAll (headCells, cellI)
{
const labelList& curCellPoints = cp[pistonCells[cellI]];
const label headCellID = cellZones().findZoneID("headCells");
forAll (curCellPoints, i)
if (headCellID > -1)
{
const labelList& headCells = cellZones()[headCellID];
forAll (headCells, cellI)
{
count[curCellPoints[i]] = true;
const labelList& curCellPoints = cp[headCells[cellI]];
forAll (curCellPoints, i)
{
count[curCellPoints[i]] = true;
}
}
}
// Count the points
nCounted = 0;
forAll (count, pointI)
{
if (count[pointI] == true)
// Count the points
label nCounted = 0;
forAll (count, pointI)
{
nCounted++;
if (count[pointI] == true)
{
nCounted++;
}
}
}
headPoints.setSize(nCounted);
headPoints.setSize(nCounted);
// Collect the points
nCounted = 0;
forAll (count, pointI)
{
if (count[pointI] == true)
// Collect the points
nCounted = 0;
forAll (count, pointI)
{
headPoints[nCounted] = pointI;
nCounted++;
if (count[pointI] == true)
{
headPoints[nCounted] = pointI;
nCounted++;
}
}
}
}
@ -325,12 +335,6 @@ bool Foam::twoStrokeEngine::update()
label nScaled = nPoints();
// label pistonPtsIndex = pointZones().findZoneID("pistonPoints");
// const labelList& pistonPoints = pointZones()[pistonPtsIndex];
// label headPtsIndex = pointZones().findZoneID("headPoints");
// const labelList& headPoints = pointZones()[headPtsIndex];
const scalarField& movingPointsM = movingPointsMask();
forAll(pistonPoints, i)
@ -377,6 +381,7 @@ bool Foam::twoStrokeEngine::update()
{
// Always move piston
scalar pistonTopZ = -GREAT;
forAll(pistonPoints, i)
{
point& p = newPoints[pistonPoints[i]];
@ -406,15 +411,11 @@ bool Foam::twoStrokeEngine::update()
}
}
movePoints(newPoints);
deleteDemandDrivenData(movingPointsMaskPtr_);
pistonPosition() += deltaZ;
//*/ //Tommaso, 23/5/2008
{
// Grab old points to correct the motion
pointField oldPointsNew = oldAllPoints();
@ -424,73 +425,98 @@ bool Foam::twoStrokeEngine::update()
makeSlidersLive();
// Changing topology by hand
autoPtr<mapPolyMesh> topoChangeMap4 = topoChanger_.changeMesh();
autoPtr<mapPolyMesh> topoChangeMap3 = topoChanger_.changeMesh();
if (topoChangeMap4->morphing())
bool localMorphing3 = topoChangeMap3->morphing();
bool globalMorphing3 = localMorphing3;
reduce(globalMorphing3, orOp<bool>());
if (globalMorphing3)
{
if (topoChangeMap4->hasMotionPoints())
Info<< "Topology change; executing pre-motion after "
<< "sliding attach" << endl;
// Grab points
newPoints = allPoints();
if (localMorphing3)
{
Info<< "Topology change; executing pre-motion after "
<< "sliding attach" << endl;
// If there is layering, pick up correct points
if (topoChangeMap3->hasMotionPoints())
{
newPoints = topoChangeMap3->preMotionPoints();
}
// Info<< "topoChangeMap4->preMotionPoints().size() = "
// << topoChangeMap4->preMotionPoints().size() << nl
// << "allPoints.size() = " << allPoints().size() << nl
// << "points.size() = " << points().size() << endl;
movePoints(topoChangeMap4->preMotionPoints());
newPoints = points();
}
{
// Prepare old points for the move
pointField mappedOldPointsNew(allPoints().size());
mappedOldPointsNew.map
(
oldPointsNew, topoChangeMap4->pointMap()
oldPointsNew, topoChangeMap3->pointMap()
);
forAll(scavInPortPatches_, patchi)
{
const labelList& cutPointsAddressing =
pointZones()
[
pointZones().findZoneID
(
"cutPointZone" + Foam::name(patchi + 1)
)
];
// Find cut point zone ID
const label cutPointZoneID = pointZones().findZoneID
(
"cutPointZone" + Foam::name(patchi + 1)
);
forAll(cutPointsAddressing, i)
if (cutPointZoneID > -1)
{
mappedOldPointsNew[cutPointsAddressing[i]] =
newPoints[cutPointsAddressing[i]];
}
const labelList& cutPointsAddressing =
pointZones()[cutPointZoneID];
forAll(cutPointsAddressing, i)
{
if
(
newPoints[cutPointsAddressing[i]].z()
> virtualPistonPosition()
)
forAll(cutPointsAddressing, i)
{
mappedOldPointsNew[cutPointsAddressing[i]].z() =
newPoints[cutPointsAddressing[i]].z();
mappedOldPointsNew[cutPointsAddressing[i]] =
newPoints[cutPointsAddressing[i]];
}
else
forAll(cutPointsAddressing, i)
{
mappedOldPointsNew[cutPointsAddressing[i]].z() =
newPoints[cutPointsAddressing[i]].z() - deltaZ;
if
(
newPoints[cutPointsAddressing[i]].z()
> virtualPistonPosition()
)
{
mappedOldPointsNew
[cutPointsAddressing[i]].z() =
newPoints[cutPointsAddressing[i]].z();
}
else
{
mappedOldPointsNew
[cutPointsAddressing[i]].z() =
newPoints[cutPointsAddressing[i]].z()
- deltaZ;
}
}
}
}
pointField newPoints = allPoints();
// Move mesh into correct old configuration
movePoints(mappedOldPointsNew);
resetMotion();
setV0();
// Set new point motion
movePoints(newPoints);
}
else
{
// No local topological change. Execute double motion for
// sync with topological changes
movePoints(oldPointsNew);
resetMotion();
setV0();
// Set new point motion
movePoints(newPoints);
}
}

View file

@ -1,11 +1,11 @@
// Add piston layer addition/removal
if (piston().patchID().active())
{
Info<< "Adding a layer addition/removal mesh modifier to the piston"
<< endl;
topoChanger_.setSize(nMods + 1);
Info << "Adding a layer addition/removal mesh modifier to the piston" << endl;
topoChanger_.setSize(nMods+1);
topoChanger_.set
(
nMods,
@ -17,9 +17,9 @@
"pistonLayerFaces",
piston().minLayer(),
piston().maxLayer()
)
)
);
nMods++;
Info << "pistonLayer" << endl;
Info << nMods << endl;
Info << "pistonLayer modifier number " << nMods << endl;
}

View file

@ -7,7 +7,8 @@
(
engineTopoChangerMesh::defaultRegion,
runTime.timeName(),
runTime
runTime,
IOobject::MUST_READ
)
)
);

View file

@ -43,7 +43,7 @@ namespace Foam
addToRunTimeSelectionTable
(
topoChangerFvMesh,
engineTopoChangerMesh,
simpleEngineTopoFvMesh,
IOobject
);
@ -211,7 +211,7 @@ bool Foam::simpleEngineTopoFvMesh::attached() const
{
if
(
result
result
!= refCast<const slidingInterface>(topoChanger_[modI]).attached()
)
{
@ -458,8 +458,7 @@ Foam::simpleEngineTopoFvMesh::simpleEngineTopoFvMesh
const IOobject& io
)
:
topoChangerFvMesh(io),
engineTime_(refCast<const engineTime>(time())),
engineTopoChangerMesh(io),
valves_(*this, engineTime_.engineDict().lookup("valves")),
piston_(*this, engineTime_.engineDict().subDict("piston")),
msPtr_(motionSolver::New(*this)),

View file

@ -27,8 +27,7 @@ License
#ifndef simpleEngineTopoFvMesh_H
#define simpleEngineTopoFvMesh_H
#include "topoChangerFvMesh.H"
#include "engineTime.H"
#include "engineTopoChangerMesh.H"
#include "valveBank.H"
#include "simpleEnginePiston.H"
#include "motionSolver.H"
@ -44,13 +43,10 @@ namespace Foam
class simpleEngineTopoFvMesh
:
public topoChangerFvMesh
public engineTopoChangerMesh
{
// Private data
//- Engine database
const engineTime& engineTime_;
//- Engine valves
valveBank valves_;
@ -76,6 +72,9 @@ class simpleEngineTopoFvMesh
void operator=(const simpleEngineTopoFvMesh&);
//- Add valve and piston zones and modifiers
void addZonesAndModifiers();
//- Make layering modifiers live
void makeLayersLive();
@ -140,11 +139,12 @@ public:
&& engineTime_.thetaRevolution() < deformSwitch_;
}
//- Add valve and piston zones and modifiers
void addZonesAndModifiers();
//- Update the mesh for both mesh motion and topology change
virtual bool update();
//- Set boundary velocities
virtual void setBoundaryVelocity(volVectorField& U)
{}
};