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mainParentIBM.cpp
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#include <cstdlib>
#include <iostream>
#include <cmath>
#include <iomanip>
#include <fstream>
#include <string>
#include <ctime>
//#include <climits>
using namespace std;
#include "lb.h"
#include "boundary.h"
#include "units.h"
#include "cell.h"
#include "ibm.h"
int main(int argc, char *argv[])
{
//fstream in("input.txt",ios::in);
//string in="input.txt";
//string out="rst.txt";
//string cin="cellInput.txt";
//string cin="circle.txt";
string cin="sphere.txt";
//string cin="chain.txt";
//string in="inputForce.txt";
//string fin="inputChannel.txt";
//string fin="shear.txt";
string fin="channel.txt";
//string fin="Velchannel.txt";
//string fin="vonkarman.txt";
string fgeom="fgeom.txt";
string cellout="cellRst.txt";
string cellRef="cellRef.txt";
string cellForce="cellForce.txt";
string cellVelocity="cellVelocity.txt";
string fluidout="fluidRst.txt";
string fluidForce="fluidForce.txt";
string log="Log.txt";
LB channel;
channel.readInput(fin);
channel.init();
channel.printInfor();
channel.writeGeometry(fgeom);
channel.writeLog(log);
Cell rbc;
rbc.readInput(cin);
rbc.init();
rbc.nondimension(*channel.pUnits);
//rbc.output(out);
rbc.writeLog(log);
Solid *pSolid;
pSolid = &rbc;
//IBM cellInChanl(&channel,&rbc);
IBM cellInChanl(&channel,pSolid);
int nSave =1000;//10000;//2000;
int nts =50001;//500000;
cout<<"nn="<<pSolid->nn<<endl;
for (int i=0;i<pSolid->nn;i++)
cout<<"v "<<pSolid->v[2*i]<<" "<<pSolid->v[2*i+1]<<endl;
//cellInChanl.moveSolidTo(395,50);
//a.init();
//a.printInfor();// this one should come after init();
//a.output(out);
//clock_t begin = clock();
/*
for (int i=0;i<1200;i++)
{
//channel.computeVelocity();
//a.collideSwap();
//a.streamSwap();
//a.applyBC();
//if (i%nSave ==0 )
// a.output(out);
//channel.collideSwap();
//channel.streamSwap();
channel.collide();
channel.stream();
channel.applyBC();
}*/
clock_t begin = clock();
//cellInChanl.output(cellout);
for (int i=0;i<nts;i++){
cellInChanl.interpret();
rbc.updateHalf();
//rbc.computeForce();
rbc.computeReference();
rbc.computeRigidForce();
cellInChanl.spread();
channel.applyForce();
channel.collide();
channel.stream();
channel.applyBC();
//---compute fluid velocity and interpret velocity after force spreading---//
cellInChanl.interpret();
//---update position at a full time step---//
rbc.update();
//cellInChanl.periodic();
if (i%nSave ==0 ){
cout<<"x "<<pSolid->x[0]<<" "<<pSolid->x[1]<<endl;
cout<<"v "<<pSolid->v[0]<<" "<<pSolid->v[1]<<endl;
channel.writeVelocity(fluidout);
channel.writeForce(fluidForce);
rbc.writeGeometry(cellout);
rbc.writeForce(cellForce);
rbc.writeReferenceGeometry(cellRef);
rbc.writeVelocity(cellVelocity);
cout<<"time step "<<i<<" finished"<<endl;
//cout<<"area "<<rbc.computeArea()/rbc.A0<<endl;
cellInChanl.writeLog(log,i);
}
}
clock_t end = clock();
double elapsedSecs = double(end-begin)/CLOCKS_PER_SEC;
cout<<"time elapsed "<<elapsedSecs<<endl;
return 0;
}