int main(){
cout<<"LPM Chai test.."<<endl;
int nx = 32;
int ny = 8;
int tMax = 25000;
double l0 = 0.8e-6/nx;
double V0 = -10e-3;
CollisionD2Q9LPMChai *cm = new CollisionD2Q9LPMChai();
StreamD2Q9Periodic *sm = new StreamD2Q9Periodic();
LatticeModel *lm = new Lattice2D(nx, ny);
UnitHandlerLPM *uh = new UnitHandlerLPM();
uh->setCharLength(l0);
uh->setCharVoltage(V0);
cm->setUnitHandler(uh);
cm->setW(0.5);
cm->setC(1.0);
LBM *lbm = new LBM(lm, cm, sm);
/* Boundaries */
HeZouPressureNodes *bds = new HeZouPressureNodes();
//bds->setCollisionModel(cm);
for(int i = 0; i < ny; i++){
bds->addNode(0, i, 0, 1.0/1.8);
bds->addNode(nx-1, i, 0, 1.0/1.8);
}
lbm->addBoundaryNodes(bds);
//NeumannLPMNodes *iobds = new NeumannLPMNodes();
//iobds->setCollisionModel(cm);
for(int j = 0; j < ny; j++){
//iobds->addNode(0, j, 0.0);
//iobds->addNode(nx-1, j, 0.0);
}
//lbm->addBoundaryNodes(iobds);
/* Initialize solver */
lbm->init();
/* Main loop */
for(int t = 0; t < tMax; t++){
cout<<t<<endl;
lbm->collideAndStream();
lbm->handleBoundaries();
}
//lbm->calcMacroscopicVars();
cm->dataToFile();
cout<<"done LPM."<<endl;
return 0;
}
int main(){
cout<<"Poiseuille flow..."<<endl;
int nx = 101;
int ny = 21;
int tMax = 5000;
double w = 1.0;
double c = 1.0;
CollisionD2Q9BGK *cm = new CollisionD2Q9BGK();
StreamD2Q9 *sm = new StreamD2Q9();
LatticeModel *lm = new Lattice2D(nx, ny);
LBM *lbm = new LBM(lm, cm, sm);
cm->setW(w);
cm->setC(c);
/* Add boundary nodes */
BounceBackNodes<CollisionD2Q9BGK> *bbns =
new BounceBackNodes<CollisionD2Q9BGK>();
bbns->setCollisionModel(cm);
for(int i = 0; i < nx; i++){
bbns->addNode(i, 0, 0);
bbns->addNode(i, ny-1, 0);
}
//bbns->addNode(nx/2, ny/2, 0);
lbm->addBoundaryNodes(bbns);
/* Set in/outlet conditions*/
HeZouPressureNodes *cpBdry = new HeZouPressureNodes();
for(int j = 1; j < ny-1; j++){
cpBdry->addNode(nx-1, j, 0, 1.0);
cpBdry->addNode(0, j, 0, 1.1);
}
lbm->addBoundaryNodes(cpBdry);
/* Initialize solver */
lbm->init();
/* Main loop */
for(int t = 0; t < tMax; t++){
cout<<t<<endl;
lbm->collideAndStream();
}
//lbm->calcMacroscopicVars();
cm->dataToFile("bench_poi/");
cout<<"DONE!"<<endl;
return 0;
}
