示例#1
0
/**
 * @brief transform in low order Raviar Tomas
 */
void TPZCreateApproximationSpace::UndoMakeRaviartTomas(TPZCompMesh &cmesh)
{
    int numcell = cmesh.NElements();
    int el;
    for (el = 0; el<numcell ; el++) {
        TPZCompEl *cel = cmesh.ElementVec()[el];
        TPZInterpolatedElement *intel = dynamic_cast<TPZInterpolatedElement *>(cel);
        if (!intel) {
            continue;
        }
        TPZGeoEl *gel = intel->Reference();
        int geldim = gel->Dimension();
        int is;
        int nsides = gel->NSides();
        for (is=0; is<nsides; is++) {
            if (gel->SideDimension(is) != geldim-1) {
                continue;
            }
            int nsconnects = intel->NSideConnects(is);
            // only interested in HDiv elements
            if (nsconnects != 1) {
                continue;
            }
//            int cindex = intel->SideConnectIndex(0, is);
            TPZConnect &c = intel->Connect(intel->SideConnectLocId(0,is));
            if (c.HasDependency()) {
                c.RemoveDepend();
            }
        }
    }
    cmesh.ExpandSolution();
    cmesh.CleanUpUnconnectedNodes();
}
示例#2
0
void TPZMultiphysicsElement::CreateInterfaces()
{
    //nao verifica-se caso o elemento de contorno
    //eh maior em tamanho que o interface associado
    //caso AdjustBoundaryElement nao for aplicado
    //a malha eh criada consistentemente
    TPZGeoEl *ref = Reference();
    int nsides = ref->NSides();
    int InterfaceDimension = Mesh()->Dimension() - 1;
    int side;
    nsides--;//last face
    for(side=nsides;side>=0;side--) {
        if(ref->SideDimension(side) != InterfaceDimension) continue;
        TPZCompElSide thisside(this,side);
        if(this->ExistsInterface(side)) {
            //      cout << "TPZCompElDisc::CreateInterface inconsistent: interface already exists\n";
            continue;
        }
        TPZStack<TPZCompElSide> highlist;
        thisside.HigherLevelElementList(highlist,0,1);
        //a interface se cria uma vez so quando existem ambos
        //elementos esquerdo e direito (compu tacionais)
        if(!highlist.NElements()) {
            this->CreateInterface(side);//s�tem iguais ou grande => pode criar a interface
        } else {
            int64_t ns = highlist.NElements();
            int64_t is;
            for(is=0; is<ns; is++) {//existem pequenos ligados ao lado atual
                const int higheldim = highlist[is].Reference().Dimension();
                if(higheldim != InterfaceDimension) continue;
                // 	TPZCompElDisc *del = dynamic_cast<TPZCompElDisc *> (highlist[is].Element());
                // 	if(!del) continue;
                
                TPZCompEl *del = highlist[is].Element();
                if(!del) continue;
                
                TPZCompElSide delside( del, highlist[is].Side() );
                TPZMultiphysicsElement * delSp = dynamic_cast<TPZMultiphysicsElement *>(del);
                if (!delSp){
                    PZError << "\nERROR AT " << __PRETTY_FUNCTION__ <<  " - CASE NOT AVAILABLE\n";
                    return;
                }
                if ( delSp->ExistsInterface(highlist[is].Side()) ) {
                    //          cout << "TPZCompElDisc::CreateInterface inconsistent: interface already exists\n";
                }
                else {
                    delSp->CreateInterface(highlist[is].Side());
                }
            }
        }
    }
}
示例#3
0
/**
 * @brief transform in low order Raviar Tomas
 */
void TPZCreateApproximationSpace::MakeRaviartTomas(TPZCompMesh &cmesh)
{
    int numcell = cmesh.NElements();
    int el;
    for (el = 0; el<numcell ; el++) {
        TPZCompEl *cel = cmesh.ElementVec()[el];
        TPZInterpolationSpace *intel = dynamic_cast<TPZInterpolationSpace *>(cel);
        if (!intel) {
            continue;
        }
        intel->SetPreferredOrder(1);
    }
    cmesh.ExpandSolution();
    for (el = 0; el<numcell ; el++) {
        TPZCompEl *cel = cmesh.ElementVec()[el];
        TPZInterpolatedElement *intel = dynamic_cast<TPZInterpolatedElement *>(cel);
        if (!intel) {
            continue;
        }
        TPZGeoEl *gel = intel->Reference();
        int geldim = gel->Dimension();
        int is;
        int nsides = gel->NSides();
        for (is=0; is<nsides; is++) {
            if (gel->SideDimension(is) != geldim-1) {
                continue;
            }
            int nsconnects = intel->NSideConnects(is);
            // only interested in HDiv elements
            if (nsconnects != 1) {
                continue;
            }
            int cindex = intel->SideConnectIndex(0, is);
            TPZConnect &c = intel->Connect(intel->SideConnectLocId(0,is));
            if (c.HasDependency()) {
                continue;
            }
            int nshape = 1;
            int nstate = 1;
            int order = 0;
            int cindex2 = cmesh.AllocateNewConnect(nshape, nstate, order);
//            TPZConnect &c2 = cmesh.ConnectVec()[cindex];
            TPZFNMatrix<2> depmat(2,1,1.);
            c.AddDependency(cindex, cindex2, depmat, 0, 0, 2, 1);
        }
    }
    cmesh.ExpandSolution();
}
示例#4
0
文件: Main.cpp 项目: labmec/neopz
void InsertBoundaryElements(TPZGeoMesh *gmesh)
{
    REAL xplane = 1435;
    REAL yplane = 1161;
    REAL zplane = -1530;
    REAL ztop = 122.8;
    REAL minx = 0;
    REAL minz = 0;
    REAL maxz = 0;
    
    int64_t nel = gmesh->NElements();
    for (int64_t el=0; el<nel; el++) {
        TPZGeoEl *gel = gmesh->Element(el);
        if (gel->HasSubElement()) {
            continue;
        }
        int nsides = gel->NSides();
        for (int is=0; is<nsides; is++) {
            int bccreated = 999;
            TPZGeoElSide gelside(gel,is);
            if (gel->SideDimension(is) == 1) {
                TPZManVector<REAL,3> xcenter(3);
                gelside.CenterX(xcenter);
                if (xcenter[2] > maxz) {
                    maxz = xcenter[2];
                }
                if (fabs(xcenter[0]) < 1 && fabs(xcenter[2]-ztop) < 1) {
                    bccreated = bcloadtop;
                    TPZGeoElSide neighbour = gelside.Neighbour();
                    while (neighbour != gelside) {
                        if (neighbour.Element()->MaterialId() == bcloadtop) {
                            bccreated = 999;
                        }
                        neighbour = neighbour.Neighbour();
                        
                    }
                    if (bccreated == bcloadtop)
                    {
                        std::cout << "Added boundary bcloadtop xcenter = " << xcenter << std::endl;
                    }
                }
            }
            if (gel->SideDimension(is) == 2)
            {
                TPZManVector<REAL,3> xcenter(3);
                gelside.CenterX(xcenter);
                if (xcenter[0] < minx) {
                    minx = xcenter[0];
                }
                if (xcenter[2] < minz) {
                    minz = xcenter[2];
                }
                if (fabs(xcenter[2] - zplane) < 1.) {
                    bccreated = bcbottom;
                }
                if (fabs(fabs(xcenter[0])-xplane) < 1) {
                    bccreated = bcsidex;
                }
                if (fabs(fabs(xcenter[1])-yplane) < 1) {
                    bccreated = bcsidey;
                }
                if (fabs(xcenter[2]-ztop) <1) {
                    bccreated = bctopsurface;
                }
            }
            if(bccreated != 999)
            {
                if (gelside.Dimension() == 2 && gelside.Neighbour() != gelside) {
                    DebugStop();;
                }
                gel->CreateBCGeoEl(is, bccreated);
            }
        }
    }
    std::cout << "minx = " << minx << " minz = " << minz << " maxz " << maxz << std::endl;
}