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Diffstat (limited to 'src/boundary/momentaOnBoundaries3D.hh')
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diff --git a/src/boundary/momentaOnBoundaries3D.hh b/src/boundary/momentaOnBoundaries3D.hh new file mode 100644 index 0000000..99102f2 --- /dev/null +++ b/src/boundary/momentaOnBoundaries3D.hh @@ -0,0 +1,300 @@ +/* This file is part of the OpenLB library + * + * Copyright (C) 2006, 2007 Jonas Latt + * E-mail contact: info@openlb.net + * The most recent release of OpenLB can be downloaded at + * <http://www.openlb.net/> + * + * This program 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. + * + * This program 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 this program; if not, write to the Free + * Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + * Boston, MA 02110-1301, USA. +*/ + +/** \file + * Local boundary cell 3D dynamics -- generic implementation. + */ +#ifndef MOMENTA_ON_BOUNDARIES_3D_HH +#define MOMENTA_ON_BOUNDARIES_3D_HH + +#include "momentaOnBoundaries3D.h" +#include "dynamics/lbHelpers.h" +#include "dynamics/firstOrderLbHelpers.h" + +namespace olb { + +////////////////////// Class InnerEdgeVelBM3D /////////////// + +template<typename T, typename DESCRIPTOR, + int plane, int normal1, int normal2> +InnerEdgeVelBM3D<T,DESCRIPTOR,plane,normal1,normal2>:: +InnerEdgeVelBM3D() +{ + for (int iD=0; iD<DESCRIPTOR::d; ++iD) { + _u[iD] = T(); + } +} + +template<typename T, typename DESCRIPTOR, + int plane, int normal1, int normal2> +InnerEdgeVelBM3D<T,DESCRIPTOR,plane,normal1,normal2>:: +InnerEdgeVelBM3D(const T u_[DESCRIPTOR::d]) +{ + for (int iD=0; iD<DESCRIPTOR::d; ++iD) { + _u[iD] = u_[iD]; + } +} + +template<typename T, typename DESCRIPTOR, + int plane, int normal1, int normal2> +T InnerEdgeVelBM3D<T,DESCRIPTOR,plane,normal1,normal2>::computeRho ( + Cell<T,DESCRIPTOR> const& cell ) const +{ + T rho1 = velocityBMRho<T, DESCRIPTOR, direction1, normal1>(cell, _u); + T rho2 = velocityBMRho<T, DESCRIPTOR, direction2, normal2>(cell, _u); + return (rho1 + rho2) / (T)2; +} + +template<typename T, typename DESCRIPTOR, + int plane, int normal1, int normal2> +void InnerEdgeVelBM3D<T,DESCRIPTOR,plane,normal1,normal2>::computeU ( + Cell<T,DESCRIPTOR> const& cell, + T u[DESCRIPTOR::d] ) const +{ + for (int iD=0; iD<DESCRIPTOR::d; ++iD) { + u[iD] = _u[iD]; + } +} + +template<typename T, typename DESCRIPTOR, + int plane, int normal1, int normal2> +void InnerEdgeVelBM3D<T,DESCRIPTOR,plane,normal1,normal2>::computeJ ( + Cell<T,DESCRIPTOR> const& cell, + T j[DESCRIPTOR::d] ) const +{ + T rho = computeRho(cell); + for (int iD=0; iD<DESCRIPTOR::d; ++iD) { + j[iD] = _u[iD]*rho; + } +} + +template<typename T, typename DESCRIPTOR, + int plane, int normal1, int normal2> +void InnerEdgeVelBM3D<T,DESCRIPTOR,plane,normal1,normal2>::computeU ( + T u[DESCRIPTOR::d] ) const +{ + for (int iD=0; iD<DESCRIPTOR::d; ++iD) { + u[iD] = _u[iD]; + } +} + +template<typename T, typename DESCRIPTOR, + int plane, int normal1, int normal2> +void InnerEdgeVelBM3D<T,DESCRIPTOR,plane,normal1,normal2>::defineRho ( + Cell<T,DESCRIPTOR>& cell, T rho ) +{ } + +template<typename T, typename DESCRIPTOR, + int plane, int normal1, int normal2> +void InnerEdgeVelBM3D<T,DESCRIPTOR,plane,normal1,normal2>::defineU ( + Cell<T,DESCRIPTOR>& cell, + const T u[DESCRIPTOR::d] ) +{ + for (int iD=0; iD<DESCRIPTOR::d; ++iD) { + _u[iD] = u[iD]; + } +} + +template<typename T, typename DESCRIPTOR, + int plane, int normal1, int normal2> +void InnerEdgeVelBM3D<T,DESCRIPTOR,plane,normal1,normal2>::defineU ( + const T u[DESCRIPTOR::d] ) +{ + for (int iD=0; iD<DESCRIPTOR::d; ++iD) { + _u[iD] = u[iD]; + } +} + +template<typename T, typename DESCRIPTOR, + int plane, int normal1, int normal2> +void InnerEdgeVelBM3D<T,DESCRIPTOR,plane,normal1,normal2>:: +defineAllMomenta ( + Cell<T,DESCRIPTOR>& cell, + T rho, const T u[DESCRIPTOR::d], + const T pi[util::TensorVal<DESCRIPTOR >::n] ) +{ + for (int iD=0; iD<DESCRIPTOR::d; ++iD) { + _u[iD] = u[iD]; + } +} + +template<typename T, typename DESCRIPTOR, + int plane, int normal1, int normal2> +void InnerEdgeVelBM3D<T,DESCRIPTOR,plane,normal1,normal2>:: +computeStress ( + Cell<T,DESCRIPTOR> const& cell, + T rho, const T u[DESCRIPTOR::d], + T pi[util::TensorVal<DESCRIPTOR >::n] ) const +{ + typedef lbHelpers<T,DESCRIPTOR> lbH; + + T uSqr = util::normSqr<T,DESCRIPTOR::d>(u); + + Cell<T,DESCRIPTOR> newCell(cell); + for (int iPop=0; iPop<DESCRIPTOR::q; ++iPop) { + if ( (descriptors::c<DESCRIPTOR>(iPop,direction1) == -normal1) && + (descriptors::c<DESCRIPTOR>(iPop,direction2) == -normal2) ) { + int opp = util::opposite<DESCRIPTOR >(iPop); + newCell[iPop] = newCell[opp] + - lbH::equilibrium(opp, rho, u, uSqr) + + lbH::equilibrium(iPop, rho, u, uSqr); + } + } + lbH::computeStress(newCell, rho, u, pi); +} + + +////////////////////// Class InnerCornerVelBM3D /////////////// + +template<typename T, typename DESCRIPTOR, + int normalX, int normalY, int normalZ> +InnerCornerVelBM3D<T,DESCRIPTOR,normalX,normalY,normalZ>::InnerCornerVelBM3D() +{ + for (int iD=0; iD<DESCRIPTOR::d; ++iD) { + _u[iD] = T(); + } +} + +template<typename T, typename DESCRIPTOR, + int normalX, int normalY, int normalZ> +InnerCornerVelBM3D<T,DESCRIPTOR,normalX,normalY,normalZ>::InnerCornerVelBM3D ( + const T u_[DESCRIPTOR::d]) +{ + for (int iD=0; iD<DESCRIPTOR::d; ++iD) { + _u[iD] = u_[iD]; + } +} + +template<typename T, typename DESCRIPTOR, + int normalX, int normalY, int normalZ> +T InnerCornerVelBM3D<T,DESCRIPTOR,normalX,normalY,normalZ>::computeRho ( + Cell<T,DESCRIPTOR> const& cell ) const +{ + T rhoX = velocityBMRho<T, DESCRIPTOR, 0, normalX>(cell, _u); + T rhoY = velocityBMRho<T, DESCRIPTOR, 1, normalY>(cell, _u); + T rhoZ = velocityBMRho<T, DESCRIPTOR, 2, normalZ>(cell, _u); + return (rhoX + rhoY + rhoZ) / (T)3; +} + +template<typename T, typename DESCRIPTOR, + int normalX, int normalY, int normalZ> +void InnerCornerVelBM3D<T,DESCRIPTOR,normalX,normalY,normalZ>::computeU ( + Cell<T,DESCRIPTOR> const& cell, + T u[DESCRIPTOR::d] ) const +{ + for (int iD=0; iD<DESCRIPTOR::d; ++iD) { + u[iD] = _u[iD]; + } +} + +template<typename T, typename DESCRIPTOR, + int normalX, int normalY, int normalZ> +void InnerCornerVelBM3D<T,DESCRIPTOR,normalX,normalY,normalZ>::computeJ ( + Cell<T,DESCRIPTOR> const& cell, + T j[DESCRIPTOR::d] ) const +{ + T rho = computeRho(cell); + for (int iD=0; iD<DESCRIPTOR::d; ++iD) { + j[iD] = _u[iD]*rho; + } +} + +template<typename T, typename DESCRIPTOR, + int normalX, int normalY, int normalZ> +void InnerCornerVelBM3D<T,DESCRIPTOR,normalX,normalY,normalZ>::computeU ( + T u[DESCRIPTOR::d] ) const +{ + for (int iD=0; iD<DESCRIPTOR::d; ++iD) { + u[iD] = _u[iD]; + } +} + +template<typename T, typename DESCRIPTOR, + int normalX, int normalY, int normalZ> +void InnerCornerVelBM3D<T,DESCRIPTOR,normalX,normalY,normalZ>::defineRho ( + Cell<T,DESCRIPTOR>& cell, T rho ) +{ } + +template<typename T, typename DESCRIPTOR, + int normalX, int normalY, int normalZ> +void InnerCornerVelBM3D<T,DESCRIPTOR,normalX,normalY,normalZ>::defineU ( + Cell<T,DESCRIPTOR>& cell, + const T u[DESCRIPTOR::d] ) +{ + for (int iD=0; iD<DESCRIPTOR::d; ++iD) { + _u[iD] = u[iD]; + } +} + +template<typename T, typename DESCRIPTOR, + int normalX, int normalY, int normalZ> +void InnerCornerVelBM3D<T,DESCRIPTOR,normalX,normalY,normalZ>::defineU ( + const T u[DESCRIPTOR::d] ) +{ + for (int iD=0; iD<DESCRIPTOR::d; ++iD) { + _u[iD] = u[iD]; + } +} + +template<typename T, typename DESCRIPTOR, + int normalX, int normalY, int normalZ> +void InnerCornerVelBM3D<T,DESCRIPTOR,normalX,normalY,normalZ>::defineAllMomenta ( + Cell<T,DESCRIPTOR>& cell, + T rho, const T u[DESCRIPTOR::d], + const T pi[util::TensorVal<DESCRIPTOR >::n] ) +{ + for (int iD=0; iD<DESCRIPTOR::d; ++iD) { + _u[iD] = u[iD]; + } +} + +template<typename T, typename DESCRIPTOR, + int normalX, int normalY, int normalZ> +void InnerCornerVelBM3D<T,DESCRIPTOR,normalX,normalY,normalZ>::computeStress ( + Cell<T,DESCRIPTOR> const& cell, + T rho, const T u[DESCRIPTOR::d], + T pi[util::TensorVal<DESCRIPTOR >::n] ) const +{ + typedef lbHelpers<T,DESCRIPTOR> lbH; + Cell<T,DESCRIPTOR> newCell(cell); + int v[DESCRIPTOR::d] = { -normalX, -normalY, -normalZ }; + int unknownF = util::findVelocity<DESCRIPTOR >(v); + + if (unknownF != DESCRIPTOR::q) { + int oppositeF = util::opposite<DESCRIPTOR >(unknownF); + + T uSqr = util::normSqr<T,DESCRIPTOR::d>(u); + + newCell[unknownF] = newCell[oppositeF] + - lbH::equilibrium(oppositeF, rho, u, uSqr) + + lbH::equilibrium(unknownF, rho, u, uSqr); + } + + lbH::computeStress(newCell, rho, u, pi); +} + + + +} // namespace olb + +#endif |