From 94d3e79a8617f88dc0219cfdeedfa3147833719d Mon Sep 17 00:00:00 2001
From: Adrian Kummerlaender
Date: Mon, 24 Jun 2019 14:43:36 +0200
Subject: Initialize at openlb-1-3
---
...shanChenForcedSingleComponentPostProcessor3D.hh | 176 +++++++++++++++++++++
1 file changed, 176 insertions(+)
create mode 100644 src/dynamics/shanChenForcedSingleComponentPostProcessor3D.hh
(limited to 'src/dynamics/shanChenForcedSingleComponentPostProcessor3D.hh')
diff --git a/src/dynamics/shanChenForcedSingleComponentPostProcessor3D.hh b/src/dynamics/shanChenForcedSingleComponentPostProcessor3D.hh
new file mode 100644
index 0000000..884de1b
--- /dev/null
+++ b/src/dynamics/shanChenForcedSingleComponentPostProcessor3D.hh
@@ -0,0 +1,176 @@
+/* This file is part of the OpenLB library
+ *
+ * Copyright (C) 2008 Orestis Malaspinas, Andrea Parmigiani,
+ * Jonas Latt, 2013 Mathias J. Krause
+ * E-mail contact: info@openlb.net
+ * The most recent release of OpenLB can be downloaded at
+ *
+ *
+ * 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.
+*/
+
+#ifndef SHAN_CHEN_FORCED_SINGLE_COMPONENT_POST_PROCESSOR_3D_HH
+#define SHAN_CHEN_FORCED_SINGLE_COMPONENT_POST_PROCESSOR_3D_HH
+
+#include "shanChenForcedSingleComponentPostProcessor3D.h"
+#include "interactionPotential.h"
+#include "core/blockLattice3D.h"
+#include "core/util.h"
+#include "core/finiteDifference3D.h"
+
+namespace olb {
+
+//////// ShanChenForcedSingleComponentPostProcessor3D ///////////////////////////////////
+
+
+template
+ShanChenForcedSingleComponentPostProcessor3D ::
+ShanChenForcedSingleComponentPostProcessor3D(int x0_, int x1_, int y0_, int y1_, int z0_, int z1_,
+ T G_, std::vector rho0_, AnalyticalF1D& iP_,
+ std::vector partners_)
+ : x0(x0_), x1(x1_), y0(y0_), y1(y1_), z0(z0_), z1(z1_), G(G_), rho0(rho0_), interactionPotential(iP_), partners(partners_)
+{ }
+
+template
+ShanChenForcedSingleComponentPostProcessor3D ::
+ShanChenForcedSingleComponentPostProcessor3D(T G_, std::vector rho0_, AnalyticalF1D& iP_,
+ std::vector partners_)
+ : x0(0), x1(0), y0(0), y1(0), z0(0), z1(0), G(G_), rho0(rho0_), interactionPotential(iP_), partners(partners_)
+{ }
+
+template
+void ShanChenForcedSingleComponentPostProcessor3D::
+processSubDomain( BlockLattice3D& blockLattice,
+ int x0_, int x1_, int y0_, int y1_, int z0_, int z1_ )
+{
+ typedef DESCRIPTOR L;
+
+ int newX0, newX1, newY0, newY1, newZ0, newZ1;
+ if ( util::intersect ( x0, x1, y0, y1, z0, z1,
+ x0_, x1_, y0_, y1_, z0_, z1_,
+ newX0, newX1, newY0, newY1, newZ0, newZ1 ) ) {
+ int nx = newX1-newX0+3; // include a one-cell boundary
+ int ny = newY1-newY0+3; // include a one-cell boundary
+ int nz = newZ1-newZ0+3; // include a one-cell boundary
+ int offsetX = newX0-1;
+ int offsetY = newY0-1;
+ int offsetZ = newZ0-1;
+
+ BlockData3D rhoField1(nx,ny,nz);
+
+ // Compute density and velocity on every site of first lattice, and store result
+ // in external scalars; envelope cells are included, because they are needed
+ // to compute the interaction potential in what follows.
+ for (int iX=newX0-1; iX<=newX1+1; ++iX) {
+ for (int iY=newY0-1; iY<=newY1+1; ++iY) {
+ for (int iZ=newZ0-1; iZ<=newZ1+1; ++iZ) {
+ Cell& cell = blockLattice.get(iX,iY,iZ);
+ rhoField1.get(iX-offsetX, iY-offsetY, iZ-offsetZ) = cell.computeRho()*rho0[0];
+ }
+ }
+ }
+
+ for (int iX=newX0; iX<=newX1; ++iX) {
+ for (int iY=newY0; iY<=newY1; ++iY) {
+ for (int iZ=newZ0; iZ<=newZ1; ++iZ) {
+ Cell& blockCell = blockLattice.get(iX,iY,iZ);
+
+ T* j = blockCell.template getFieldPointer();
+ lbHelpers::computeJ(blockCell,j);
+
+ T blockOmega = blockLattice.getDynamics(iX, iY, iZ)->getOmega();
+
+ // Computation of the common velocity, shared among the two populations
+ T rhoTot = rhoField1.get(iX-offsetX, iY-offsetY, iZ-offsetZ)*blockOmega;
+
+ T uTot[DESCRIPTOR::d];
+ T *blockU = blockCell.template getFieldPointer(); // contains precomputed value rho*u
+ for (int iD = 0; iD < DESCRIPTOR::d; ++iD) {
+ uTot[iD] = (blockU[iD]*rho0[0]*blockOmega) / rhoTot;
+ }
+
+ // Computation of the interaction potential
+ T rhoBlockContribution[L::d] = {T(), T(), T()};
+ T psi;
+ interactionPotential(&psi, &rhoField1.get(iX-offsetX, iY-offsetY, iZ-offsetZ));
+ for (int iPop = 0; iPop < L::q; ++iPop) {
+ int nextX = iX + descriptors::c(iPop,0);
+ int nextY = iY + descriptors::c(iPop,1);
+ int nextZ = iZ + descriptors::c(iPop,2);
+ T blockRho;
+ interactionPotential(&blockRho, &rhoField1.get(nextX-offsetX, nextY-offsetY, nextZ-offsetZ));
+ for (int iD = 0; iD < L::d; ++iD) {
+ rhoBlockContribution[iD] += psi * blockRho * descriptors::c(iPop,iD)* descriptors::t(iPop);
+ }
+ }
+
+ // Computation and storage of the final velocity, consisting
+ // of u and the momentum difference due to interaction
+ // potential plus external force
+ T *blockForce = blockCell.template getFieldPointer();
+ T *externalBlockForce = blockCell.template getFieldPointer();
+
+ for (int iD = 0; iD < L::d; ++iD) {
+ blockU[iD] = uTot[iD];
+ blockForce[iD] = externalBlockForce[iD] - G*rhoBlockContribution[iD]/rhoField1.get(iX-offsetX, iY-offsetY, iZ-offsetZ);
+ }
+ }
+ }
+ }
+ }
+}
+
+template
+void ShanChenForcedSingleComponentPostProcessor3D::
+process(BlockLattice3D& blockLattice)
+{
+ processSubDomain(blockLattice, x0, x1, y0, y1, z0, z1);
+}
+
+
+/// LatticeCouplingGenerator for NS coupling
+
+template
+ShanChenForcedSingleComponentGenerator3D::ShanChenForcedSingleComponentGenerator3D (
+ int x0_, int x1_, int y0_, int y1_, int z0_, int z1_, T G_, std::vector rho0_, AnalyticalF1D& iP_)
+ : LatticeCouplingGenerator3D(x0_, x1_, y0_, y1_, z0_, z1_), G(G_), rho0(rho0_), interactionPotential(iP_)
+{ }
+
+template
+ShanChenForcedSingleComponentGenerator3D::ShanChenForcedSingleComponentGenerator3D (
+ T G_, std::vector rho0_, AnalyticalF1D& iP_)
+ : LatticeCouplingGenerator3D(0, 0, 0, 0, 0, 0), G(G_), rho0(rho0_), interactionPotential(iP_)
+{ }
+
+template
+PostProcessor3D* ShanChenForcedSingleComponentGenerator3D::generate (
+ std::vector partners) const
+{
+ return new ShanChenForcedSingleComponentPostProcessor3D(
+ this->x0,this->x1,this->y0,this->y1,this->z0,this->z1, G, rho0, interactionPotential, partners);
+}
+
+template
+LatticeCouplingGenerator3D* ShanChenForcedSingleComponentGenerator3D::clone() const
+{
+ return new ShanChenForcedSingleComponentGenerator3D(*this);
+}
+
+
+
+} // namespace olb
+
+#endif
--
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