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femSmallStrain.C
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/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright held by original author
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 2 of the License, or (at your
option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM; if not, write to the Free Software Foundation,
Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
\*---------------------------------------------------------------------------*/
#include "femSmallStrain.H"
#include "volFields.H"
#include "addToRunTimeSelectionTable.H"
#include "tractionDisplacementFvPatchVectorField.H"
#include "velocityTractionDisplacementFvPatchVectorField.H"
#include "multiMaterial.H"
#include "twoDPointCorrector.H"
#include "fixedValuePointPatchFields.H"
#include "emptyPointPatchFields.H"
#include "RBFInterpolation.H"
#include "TPSFunction.H"
#include "ZoneIDs.H"
#include "primitivePatchInterpolation.H"
using namespace rbf;
// * * * * * * * * * * * * ParaFEM Fortran Subroutines* * * * * * * * * * * * //
// - Will need editing when more complex elements introduced
const int nod = 8; // Element type
const int ndim = 3; // Number of Dimensions
const int ntot = ndim*nod; // ntot
using namespace std;
// Declaration of Fortran Subroutines
extern"C"
{
// Initialises ParaFEM
// Called at construction
void initl_
(
double* g_coord,
int* rest,
int* nn,
const int* nr,
int* g_num_pp,
int* g_g_pp,
double* g_coord_pp
);
// return number of equations/proc
int findneqpp_();
// return number of cells/proc
int setnelspp_
(
const int* numCells
);
// Solve the structural equation
void runl_
(
int* node,
double* val,
double* numVar,
double* matProp,
int* nr,
int* loadedNodes,
double* time,
int* g_g_pp,
int* g_num_pp,
double* g_coord_pp,
double* gravlo,
double* ptDtemp_,
double* ptUtemp_,
double* ptAtmep_,
double* flag
);
// Calculate Gravitational Loads
void gloads_
(
double* gravlo,
double* gravity,
int* nn,
int* nodof,
const int* nod,
const int* ndim,
int* nr,
double* g_coord,
int* g_num_pp,
int* rest
);
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
namespace solidSolvers
{
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
defineTypeNameAndDebug(femSmallStrain, 0);
addToRunTimeSelectionTable(solidSolver, femSmallStrain, dictionary);
// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
femSmallStrain::femSmallStrain(const fvMesh& mesh)
:
solidSolver(typeName, mesh),
mPoints_(NULL),
solidProps_(NULL),
numSchemes_(NULL),
g_num_pp_OF_(NULL),
g_g_pp_OF_(NULL),
g_coord_pp_OF_(NULL),
gravlo_(NULL),
numRestrNodes_(0),
rest_(NULL),
rest_ensi_(NULL),
numFixedForceNodes_(0),
forceNodes_(NULL),
fext_OF_(NULL),
nodeensi_(NULL),
sense_(NULL),
E_(0),
nu_(0),
rhotmp_(0),
timeflag_(0),
gCells_(0),
gPoints_(0),
ptDtemp_(0),
ptUtemp_(0),
ptAtemp_(0),
rbfUpdate_(false),
twoDimensional_(false),
D_
(
IOobject
(
"D",
runTime().timeName(),
mesh,
IOobject::MUST_READ,
IOobject::AUTO_WRITE
),
mesh
),
U_
(
IOobject
(
// "U",
"ddt(" + D_.name() + ")",
runTime().timeName(),
mesh,
IOobject::READ_IF_PRESENT,
IOobject::AUTO_WRITE
),
// fvc::ddt(D_)
mesh,
dimensionedVector("0", dimVelocity, vector::zero)
),
pMesh_(mesh),
pointD_
(
IOobject
(
"pointD",
runTime().timeName(),
mesh,
// IOobject::READ_IF_PRESENT,
IOobject::MUST_READ,
IOobject::AUTO_WRITE
),
pMesh_
// dimensionedVector("0", dimLength, vector::zero)
),
pointU_
(
IOobject
(
"pointU",
runTime().timeName(),
mesh,
//IOobject::READ_IF_PRESENT,
IOobject::MUST_READ,
IOobject::AUTO_WRITE
),
pMesh_
//dimensionedVector("0", dimVelocity, vector::zero)
),
pointA_
(
IOobject
(
"pointA",
runTime().timeName(),
mesh,
//IOobject::READ_IF_PRESENT,
IOobject::MUST_READ,
IOobject::AUTO_WRITE
),
pMesh_
//dimensionedVector("0", dimAcceleration, vector::zero)
),
sigma_
(
IOobject
(
"sigma",
runTime().timeName(),
mesh,
IOobject::NO_READ,
IOobject::AUTO_WRITE
),
mesh,
dimensionedSymmTensor("zero", dimForce/dimArea, symmTensor::zero)
),
epsilon_
(
IOobject
(
"epsilon",
runTime().timeName(),
mesh,
IOobject::NO_READ,
IOobject::AUTO_WRITE
),
mesh,
dimensionedSymmTensor("zero", dimless, symmTensor::zero)
),
pointProcAddressing_
(
IOobject
(
"pointProcAddressing",
mesh.facesInstance(),
mesh.meshSubDir,
mesh,
IOobject::READ_IF_PRESENT,
IOobject::NO_WRITE
)
),
cellProcAddressing_
(
IOobject
(
"cellProcAddressing",
mesh.facesInstance(),
mesh.meshSubDir,
mesh,
IOobject::READ_IF_PRESENT,
IOobject::NO_WRITE
)
),
of2pfmap_(mesh.points().size()),
rheology_(sigma_, D_),
volToPoint_(mesh),
pointToVol_(pMesh_,mesh),
rho_("rho", rheology_.rho()),
mu_(rheology_.mu()),
lambda_(rheology_.lambda()),
interface_(NULL)
{
pointD_.oldTime();
pointU_.oldTime();
pointA_.oldTime();
if (rheology_.law().type() == multiMaterial::typeName)
{
interface_.set(new TLMaterialInterface(D_, pointD_));
}
if (solidProperties().found("rbfUpdate"))
{
rbfUpdate_ = Switch(solidProperties().lookup("rbfUpdate"));
}
Info << "rbfUpdate: " << rbfUpdate_ << endl;
// - ParaFEM construction
E_ = rheology_.law().E()()[0];
nu_ = rheology_.law().nu()()[0];
rhotmp_ = rheology_.law().rho()()[0];
// - Turn on/off the solid mesh Motion
Switch moveMesh(solidProperties().lookup("moveMesh"));
//------------------------------------------------------------------------------
// ParaFEM: Create Steering and Coordinate Matricies
//------------------------------------------------------------------------------
// Find globalPoints and local Points(note can be done with global MESH)
if(Pstream::parRun()==true)
{
// Global Mesh Points
label index = findMax(pointProcAddressing_);
gPoints_ = pointProcAddressing_[index];
reduce(gPoints_,maxOp<label>());
gPoints_ = gPoints_ + 1; // Fields Start at 0
index = findMax(cellProcAddressing_);
gCells_ = cellProcAddressing_[index];
reduce(gCells_,maxOp<label>());
gCells_ = gCells_ + 1; // Fields Start at 0
mPoints_ = new double[gPoints_*ndim];
}
else
{
gPoints_ = mesh.points().size();
gCells_ = mesh.nCells();
mPoints_ = new double [gPoints_*ndim];
}
// Populate mPoints
pointIOField startPoints
(
IOobject
(
"points",
runTime().caseConstant(),
polyMesh::meshSubDir,
mesh,
IOobject::MUST_READ,
IOobject::NO_WRITE
)
);
label globalIndex = 0;
forAll(startPoints, pointI)
{
mPoints_[globalIndex++] = startPoints[pointI].x();
mPoints_[globalIndex++] = startPoints[pointI].y();
mPoints_[globalIndex++] = startPoints[pointI].z();
}
// nels_pp
const int nels_pp_OF = mesh.nCells();
// Set nels_pp
setnelspp_(&nels_pp_OF);
g_num_pp_OF_ = new int [nod*nels_pp_OF];
ptDtemp_ = new double [ntot*nels_pp_OF];
ptUtemp_ = new double [ntot*nels_pp_OF];
ptAtemp_ = new double [ntot*nels_pp_OF];
// cellPoints() returns steering array
const labelListList& cellPoints = mesh.cellPoints();
label localIndex = 0;
if(Pstream::parRun()==true)
{
forAll(cellPoints, cellI)
{
const labelList& curCellPoints = cellPoints[cellI];
if (curCellPoints.size() != nod)
{
Info << "Not a hex cell!" << endl;
}
for(label i=0;i<nod;i++)
{
g_num_pp_OF_[localIndex++] = pointProcAddressing_[curCellPoints[i]]+1; // +1 fortran
}
}
}
else
{
forAll(cellPoints, cellI)
{
const labelList& curCellPoints = cellPoints[cellI];
if (curCellPoints.size() != nod)
{
Info << "Not a hex cell!" << endl;
}
for(label i=0;i<nod;i++)
{
g_num_pp_OF_[localIndex++] = curCellPoints[i]+1; // +1 fortran
}
}
}
//------------------------------------------------------------------------------
// ParaFEM: Create Restrained Arrays
//------------------------------------------------------------------------------
// paraFem : 0=Restrained 1=Unrestrained
// ensi_gold : 1=Restrained 0=Unrestrained
numRestrNodes_ = 0;
// First Time Get size
forAll(pointD_.boundaryField(), patchI)
{
if
(
isA<fixedValuePointPatchVectorField>
(
pointD_.boundaryField()[patchI]
)
)
{
numRestrNodes_ += mesh.boundaryMesh()[patchI].meshPoints().size();
}
if
(
isA<emptyPointPatchVectorField>
(
pointD_.boundaryField()[patchI]
)
)
{
numRestrNodes_ += mesh.boundaryMesh()[patchI].meshPoints().size();
twoDimensional_ = true;
}
}
if(twoDimensional_)
{
Info << "Simulation is 2D" << endl;
}
// Declare local Restrained List
labelListList localRest(numRestrNodes_);
//------------------------------------------------------------------------------
// ParaFEM: Boundary Conditions
//------------------------------------------------------------------------------
// Special care Needs to be taken here, the current method isn't robust
int counter = 0;
forAll(pointD_.boundaryField(), patchI)
{
// ------ Fixed Z ------
if
(
isA<emptyPointPatchVectorField>
(
pointD_.boundaryField()[patchI]
)
)
{
const labelList& mp = mesh.boundaryMesh()[patchI].meshPoints();
forAll(mp, pI)
{
labelList myList(4);
if(Pstream::parRun()==true)
{
myList[0] = pointProcAddressing_[mp[pI]]+1;
}
else
{
myList[0] = mp[pI]+1;
}
myList[1] = 1;
myList[2] = 1;
myList[3] = 0;
localRest[counter] = myList;
counter++;
}
}
// ------ Fixed X Y Z ------
if
(
isA<fixedValuePointPatchVectorField>
(
pointD_.boundaryField()[patchI]
)
)
{
const labelList& mp = mesh.boundaryMesh()[patchI].meshPoints();
forAll(mp, pI)
{
labelList myList(4);
if(Pstream::parRun()==true)
{
myList[0] = pointProcAddressing_[mp[pI]]+1;
}
else
{
myList[0] = mp[pI]+1;
}
if(mesh.boundary()[patchI].name() == "frontAndBack")
{
myList[1] = 1;
myList[2] = 1;
myList[3] = 0;
}
else
{
myList[1] = 0;
myList[2] = 0;
myList[3] = 0;
}
localRest[counter] = myList;
counter++;
}
}
}
//------------------------------------------------------------------------------
// ParaFEM: Generating Restrained Array
//------------------------------------------------------------------------------
// Sort lists
sort(localRest);
numRestrNodes_ = localRest.size();
// Gather All Lists
List<List<List<label>>> globalRest(Pstream::nProcs(), localRest);
//globalRest[Pstream::myProcNo()] = localRest;
Pstream::gatherList(globalRest);
Pstream::scatterList(globalRest);
// Create master Rest;
reduce(numRestrNodes_,sumOp<double>());
labelListList masterRest (numRestrNodes_);
label restIndex = 0;
forAll(globalRest,procI)
{
forAll(globalRest[procI],listI)
{
masterRest[restIndex]=globalRest[procI][listI];
restIndex++;
}
}
//Sort and find duplicate nodes
sort(masterRest);
labelList duplicateNodes;
duplicateOrder(masterRest,duplicateNodes);
// Recount number of restrained nodes
numRestrNodes_ = 0;
forAll(masterRest,listI)
{
if (listI == 0)
{
numRestrNodes_++;
continue;
}
if (masterRest[listI][0] == masterRest[listI-1][0])
{
// If exists continue
continue;
}
else
{
// If doesnt exist insert into rest
numRestrNodes_++;
}
}
rest_ = new int [numRestrNodes_*4];
restIndex = 0;
// Set rest to ZERO
for(int i=0; i<numRestrNodes_*4;i++)
{
rest_[i]=0.0;
}
// Populate rest array
forAll(masterRest,listI)
{
if (listI != 0 && masterRest[listI][0] == masterRest[listI-1][0])
{
continue;
}
else
{
rest_[ numRestrNodes_* 0 + restIndex ] = masterRest[listI][0];
rest_[ numRestrNodes_* 1 + restIndex ] = masterRest[listI][1];
rest_[ numRestrNodes_* 2 + restIndex ] = masterRest[listI][2];
rest_[ numRestrNodes_* 3 + restIndex ] = masterRest[listI][3];
restIndex++;
}
}
// Debugging
// Most Errors occur from boundary conditions
if(false)
{
fileName outputFile("rest.txt");
OFstream os(db().time().system()/outputFile);
os << "Restrained Array.\n" << endl;
os << numRestrNodes_ << "\n{" << endl;
for(int i = 0; i < numRestrNodes_; i++)
{
os << rest_[numRestrNodes_* 0 + i] << " ";
os << rest_[numRestrNodes_* 1 + i] << " ";
os << rest_[numRestrNodes_* 2 + i] << " ";
os << rest_[numRestrNodes_* 3 + i] << endl;
}
os << "}" << endl;
}
//------------------------------------------------------------------------------
// ParaFEM: Create Arrays for intialisation
//------------------------------------------------------------------------------
g_g_pp_OF_ = new int [ntot*nels_pp_OF];
g_coord_pp_OF_ = new double [nod*ndim*nels_pp_OF];
double alpha1 (readScalar(solidProperties().lookup("alpha1")));
double beta1 (readScalar(solidProperties().lookup("beta1")));
double theta (readScalar(solidProperties().lookup("theta")));
// Tolerances
// Default Values
double tol = 1e-6;
double limit = 1000;
if (solidProperties().found("PCGTolerance"))
{
tol = readScalar(solidProperties().lookup("PCGTolerance"));
}
if (solidProperties().found("PCGLimit"))
{
limit = readScalar(solidProperties().lookup("PCGLimit"));
}
numSchemes_ = new double[5];
numSchemes_[0] = alpha1;
numSchemes_[1] = beta1;
numSchemes_[2] = theta;
numSchemes_[3] = tol;
numSchemes_[4] = limit;
solidProps_ = new double[3];
solidProps_[0] = E_;
solidProps_[1] = nu_;
solidProps_[2] = rhotmp_;
label tmp = Pstream::myProcNo();
reduce(tmp,sumOp<label>());
//------------------------------------------------------------------------------
// ParaFEM: Initialise ParaFEM
//------------------------------------------------------------------------------
initl_
(
mPoints_,
rest_,
&gPoints_,
&numRestrNodes_,
g_num_pp_OF_,
g_g_pp_OF_,
g_coord_pp_OF_
);
reduce(tmp,sumOp<label>());
//------------------------------------------------------------------------------
// ParaFEM: Find Gravitry loading if set in dictionary
//------------------------------------------------------------------------------
const int neq_pp_OF = findneqpp_();
double gravity(readScalar(solidProperties().lookup("gravity")));
gravlo_ = new double [neq_pp_OF];
if(gravity > 1e-6)
{
Info << "Gravity Loading, gravity: " << gravity << " m/s^2" << endl;
// Specific weight lambda = rho * g (gloads: negative y implied)
double specWeight=gravity*rhotmp_;;
int nodof=3;
gloads_
(
gravlo_,
&specWeight,
&gPoints_,
&nodof,
&nod,
&ndim,
&numRestrNodes_,
mPoints_,
g_num_pp_OF_,
rest_
);
}
else
{
for(int i=0;i<neq_pp_OF;i++)
{
gravlo_[i]=0.0;
}
}
//------------------------------------------------------------------------------
// ParaFEM: Create Force Arrays
//------------------------------------------------------------------------------
// Identify traction specified points
forAll(D_.boundaryField(), patchI)
{
if
(
isA<tractionDisplacementFvPatchVectorField>
(
D_.boundaryField()[patchI]
)
)
{
numFixedForceNodes_ +=
mesh.boundaryMesh()[patchI].meshPoints().size();
}
}
forceNodes_ = new int [numFixedForceNodes_*ndim];
fext_OF_ = new double [numFixedForceNodes_*ndim];
label gi = 0;
forAll(D_.boundaryField(), patchI)
{
if
(
isA<tractionDisplacementFvPatchVectorField>
(
D_.boundaryField()[patchI]
)
)
{
// Local Point
const labelList& mp =
mesh.boundaryMesh()[patchI].meshPoints();
if (Pstream::parRun())
{
jj_=0;
forAll(mp, pI)
{
// Global Point
label myP = pointProcAddressing_[mp[pI]];
forceNodes_[gi++] = myP+1;
jj_=jj_+3;
}
}
else
{
jj_=0;
forAll(mp, pI)
{
forceNodes_[gi++] = mp[pI]+1;
jj_=jj_+3;
}
}
} // if
} // forAll
// Set force to zero
for(int i=0; i<numFixedForceNodes_*ndim; i++)
{
fext_OF_[i]=0;
}
//------------------------------------------------------------------------------
// ParaFEM: Create Map from OpenFOAM local to ParaFEM
//------------------------------------------------------------------------------
vectorField& pointDI = pointD_.internalField();
forAll(pointDI, pointI)
{
label value=0;
if(Pstream::parRun()==true)
{
value = pointProcAddressing_[pointI]+1;
}
else
{
value = pointI+1;
}
label index = 0;
label iel = 0;
label resizeval=0;
label counter=0;
// nod represnets the max number of elements a node may hold
labelList myLabel (nod,0);
// for each value find position in steering matrix
for(int i=0; i<nels_pp_OF*nod;i++)
{
if(i % nod == 0 && i!=0)
{
iel++;
index=0;
}
if(value==g_num_pp_OF_[i])
{
resizeval++;
myLabel[counter]=(iel*ntot)+(index*ndim);
counter++;
}
index++;
} // end for loop
myLabel.resize(resizeval);
of2pfmap_[pointI] = myLabel;
} // end for all
delete[] mPoints_;
delete[] rest_ensi_;
delete[] rest_;
delete[] nodeensi_;
delete[] sense_;
} // End Constructor
femSmallStrain::~femSmallStrain()
{
delete[] solidProps_;
delete[] g_num_pp_OF_;
delete[] g_g_pp_OF_;
delete[] numSchemes_;
delete[] forceNodes_;
delete[] fext_OF_;
delete[] gravlo_;
delete[] ptDtemp_;
delete[] ptUtemp_;
delete[] ptAtemp_;
}
// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
vector femSmallStrain::pointU(label pointID) const
{
pointVectorField pointU
(
IOobject
(
"pointU",
runTime().timeName(),
mesh(),
IOobject::NO_READ,
IOobject::NO_WRITE
),
pMesh_,
dimensionedVector("0", dimVelocity, vector::zero)
);
volToPoint_.interpolate(U_, pointU);
return pointU.internalField()[pointID];
}
//- Patch point displacement
tmp<vectorField> femSmallStrain::patchPointDisplacementIncrement
(
const label patchID
) const
{
tmp<vectorField> tPointDisplacement
(
new vectorField
(
mesh().boundaryMesh()[patchID].localPoints().size(),
vector::zero
)
);
tPointDisplacement() =
vectorField
(
pointD_.internalField() - pointD_.oldTime().internalField(),
mesh().boundaryMesh()[patchID].meshPoints()
);
return tPointDisplacement;
}
//- Face zone point displacement
tmp<vectorField> femSmallStrain::faceZonePointDisplacementIncrement
(
const label zoneID
) const
{
tmp<vectorField> tPointDisplacement
(
new vectorField
(
mesh().faceZones()[zoneID]().localPoints().size(),
vector::zero
)
);
vectorField& pointDisplacement = tPointDisplacement();
const vectorField& pointDI = pointD_.internalField();
const vectorField& oldPointDI = pointD_.oldTime().internalField();
label globalZoneIndex = findIndex(globalFaceZones(), zoneID);
// global zone index is set in the decomposeParDict
if (globalZoneIndex != -1)
// if (false)
{
//Info << "WARNING FIELDS ARE STORED ON EVERY PROCESSOR" << endl;
// global face zone
const labelList& curPointMap =
globalToLocalFaceZonePointMap()[globalZoneIndex];
const labelList& zoneMeshPoints =
mesh().faceZones()[zoneID]().meshPoints();
vectorField zonePointsDisplGlobal
(
zoneMeshPoints.size(),
vector::zero
);
//- Inter-proc points are shared by multiple procs
// pointNumProc is the number of procs which a point lies on
scalarField pointNumProcs(zoneMeshPoints.size(), 0);
forAll(zonePointsDisplGlobal, globalPointI)
{
label localPoint = curPointMap[globalPointI];
if(zoneMeshPoints[localPoint] < mesh().nPoints())
{
label procPoint = zoneMeshPoints[localPoint];
zonePointsDisplGlobal[globalPointI] =
pointDI[procPoint] - oldPointDI[procPoint];
pointNumProcs[globalPointI] = 1;
}
}
// The following block was commented out and im not sure why
if (Pstream::parRun())
{
reduce(zonePointsDisplGlobal, sumOp<vectorField>());
reduce(pointNumProcs, sumOp<scalarField>());
//- now average the displacement between all procs
zonePointsDisplGlobal /= pointNumProcs;