From 16be62fddb56828c7ec7235cfce6993000bfb357 Mon Sep 17 00:00:00 2001
From: Adrian Kummerlaender
Date: Tue, 8 Jan 2019 18:53:10 +0100
Subject: Unify lattice preparation for both grids

---
 apps/adrian/poiseuille2d/poiseuille2d.cpp | 64 +++++++------------------------
 1 file changed, 13 insertions(+), 51 deletions(-)

(limited to 'apps/adrian')

diff --git a/apps/adrian/poiseuille2d/poiseuille2d.cpp b/apps/adrian/poiseuille2d/poiseuille2d.cpp
index c8a4659..f4ebffa 100644
--- a/apps/adrian/poiseuille2d/poiseuille2d.cpp
+++ b/apps/adrian/poiseuille2d/poiseuille2d.cpp
@@ -95,14 +95,14 @@ void prepareGeometry(UnitConverter<T,DESCRIPTOR> const& converter,
   clout << "Prepare Geometry ... OK" << std::endl;
 }
 
-void prepareCoarseLattice(UnitConverter<T,DESCRIPTOR> const& converter,
-                          SuperLattice2D<T, DESCRIPTOR>& sLattice,
-                          Dynamics<T, DESCRIPTOR>& bulkDynamics,
-                          sOnLatticeBoundaryCondition2D<T,DESCRIPTOR>& sBoundaryCondition,
-                          SuperGeometry2D<T>& superGeometry)
+void prepareLattice(UnitConverter<T,DESCRIPTOR> const& converter,
+                    SuperLattice2D<T, DESCRIPTOR>& sLattice,
+                    Dynamics<T, DESCRIPTOR>& bulkDynamics,
+                    sOnLatticeBoundaryCondition2D<T,DESCRIPTOR>& sBoundaryCondition,
+                    SuperGeometry2D<T>& superGeometry)
 {
   OstreamManager clout(std::cout,"prepareLattice");
-  clout << "Prepare coarse lattice ..." << std::endl;
+  clout << "Prepare lattice ..." << std::endl;
 
   const T omega = converter.getLatticeRelaxationFrequency();
 
@@ -138,43 +138,7 @@ void prepareCoarseLattice(UnitConverter<T,DESCRIPTOR> const& converter,
 
   sLattice.initialize();
 
-  clout << "Prepare coarse lattice ... OK" << std::endl;
-}
-
-void prepareFineLattice(UnitConverter<T,DESCRIPTOR> const& converter,
-                        SuperLattice2D<T, DESCRIPTOR>& sLattice,
-                        Dynamics<T, DESCRIPTOR>& bulkDynamics,
-                        sOnLatticeBoundaryCondition2D<T,DESCRIPTOR>& sBoundaryCondition,
-                        SuperGeometry2D<T>& superGeometry)
-{
-  OstreamManager clout(std::cout,"prepareLattice");
-  clout << "Prepare fine lattice ..." << std::endl;
-
-  const T omega = converter.getLatticeRelaxationFrequency();
-
-  sLattice.defineDynamics(superGeometry, 0, &instances::getNoDynamics<T, DESCRIPTOR>());
-  sLattice.defineDynamics(superGeometry, 1, &bulkDynamics); // bulk
-  sLattice.defineDynamics(superGeometry, 2, &instances::getBounceBack<T, DESCRIPTOR>());
-
-  const T Lx = converter.getLatticeLength(lx);
-  const T Ly = converter.getLatticeLength(ly);
-  const T p0 = 8.*converter.getLatticeViscosity()*converter.getCharLatticeVelocity()*Lx/(Ly*Ly);
-  AnalyticalLinear2D<T,T> rho(-p0/lx*DESCRIPTOR<T>::invCs2, 0, p0*DESCRIPTOR<T>::invCs2+1);
-
-  const T maxVelocity = converter.getCharLatticeVelocity();
-  const T radius = ly/2;
-  std::vector<T> axisPoint{0, ly/2};
-  std::vector<T> axisDirection{1, 0};
-  Poiseuille2D<T> u(axisPoint, axisDirection, maxVelocity, radius);
-
-  sLattice.defineRhoU(superGeometry, 1, rho, u);
-  sLattice.iniEquilibrium(superGeometry, 1, rho, u);
-  sLattice.defineRhoU(superGeometry, 2, rho, u);
-  sLattice.iniEquilibrium(superGeometry, 2, rho, u);
-
-  sLattice.initialize();
-
-  clout << "Prepare fine lattice ... OK" << std::endl;
+  clout << "Prepare lattice ... OK" << std::endl;
 }
 
 void getResults(const std::string& prefix,
@@ -236,33 +200,31 @@ int main(int argc, char* argv[])
   coarseGrid->getSuperGeometry().rename(1,0,refinedOverlap);
   coarseGrid->getSuperGeometry().rename(2,0,refinedOverlap);
 
-  Dynamics<T, DESCRIPTOR>* coarseBulkDynamics;
-  coarseBulkDynamics = new BGKdynamics<T, DESCRIPTOR>(
+  BGKdynamics<T, DESCRIPTOR> coarseBulkDynamics(
     coarseGrid->getConverter().getLatticeRelaxationFrequency(),
     instances::getBulkMomenta<T, DESCRIPTOR>());
 
   sOnLatticeBoundaryCondition2D<T, DESCRIPTOR> coarseSBoundaryCondition(coarseGrid->getSuperLattice());
   createLocalBoundaryCondition2D<T, DESCRIPTOR>(coarseSBoundaryCondition);
 
-  prepareCoarseLattice(
+  prepareLattice(
     coarseGrid->getConverter(),
     coarseGrid->getSuperLattice(),
-    *coarseBulkDynamics,
+    coarseBulkDynamics,
     coarseSBoundaryCondition,
     coarseGrid->getSuperGeometry());
 
-  Dynamics<T, DESCRIPTOR>* fineBulkDynamics;
-  fineBulkDynamics = new BGKdynamics<T, DESCRIPTOR>(
+  BGKdynamics<T, DESCRIPTOR> fineBulkDynamics(
     fineGrid->getConverter().getLatticeRelaxationFrequency(),
     instances::getBulkMomenta<T, DESCRIPTOR>());
 
   sOnLatticeBoundaryCondition2D<T, DESCRIPTOR> fineSBoundaryCondition(fineGrid->getSuperLattice());
   createLocalBoundaryCondition2D<T, DESCRIPTOR>(fineSBoundaryCondition);
 
-  prepareFineLattice(
+  prepareLattice(
     fineGrid->getConverter(),
     fineGrid->getSuperLattice(),
-    *fineBulkDynamics,
+    fineBulkDynamics,
     fineSBoundaryCondition,
     fineGrid->getSuperGeometry());
 
-- 
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