locomotive_laminar.cc

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/*
 * Advanced Simulation Library <http://asl.org.il>
 * 
 * Copyright 2015 Avtech Scientific <http://avtechscientific.com>
 *
 *
 * This file is part of Advanced Simulation Library (ASL).
 *
 * ASL is free software: you can redistribute it and/or modify it
 * under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, version 3 of the License.
 *
 * ASL 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with ASL. If not, see <http://www.gnu.org/licenses/>.
 *
 */
 

 
#include <math/aslTemplates.h>
#include <aslGeomInc.h>
#include <math/aslPositionFunction.h>
#include <aslDataInc.h>
#include <acl/aclGenerators.h>
#include <writers/aslVTKFormatWriters.h>
#include <num/aslLBGK.h>
#include <num/aslLBGKBC.h>
#include <utilities/aslTimer.h>
#include <acl/aclUtilities.h>
#include <readers/aslVTKFormatReaders.h>
#include <utilities/aslParametersManager.h>
 
 
typedef float FlT;
//typedef double FlT;
typedef asl::UValue<double> Param;
 
using asl::AVec;
using asl::makeAVec;
 
asl::SPDistanceFunction generateTunnel(asl::Block & bl)
{
 
  double l(bl.getBPosition()[0]-bl.position[0]+bl.dx);
  double rTunnel((bl.getBPosition()[2]-bl.position[2])/2.);
 
  double dx(bl.dx);
 
  asl::AVec<int> size(bl.getSize());
 
  asl::AVec<> center(.5*(bl.getBPosition()+bl.position)); 
  center[1]=bl.position[1]+.25*rTunnel;
  asl::AVec<> centerG(center); 
  centerG[1]=bl.position[1];
 
  auto tunnel(-(generateDFCylinder(rTunnel, makeAVec(l,0.,0.), center) &
               generateDFPlane(makeAVec(0.,-1.,0.), centerG)));
 
  return normalize(tunnel, dx);
}
 
 
int main(int argc, char* argv[])
{
  // Optionally add appParamsManager to be able to manipulate at least
  // hardware parameters(platform/device) through command line/parameters file
  asl::ApplicationParametersManager appParamsManager("locomotive_laminar",
                                                     "1.0");
  asl::Parameter<string> input("input", "path to the geometry input file");
  appParamsManager.load(argc, argv);
 
  Param dx(0.5);
  Param dt(1.);
  Param nu(.01);
 
  
  AVec<int> size(makeAVec(150., 37., 53.2)*(1./dx.v()));
  asl::Block bl(size,dx.v(),makeAVec(-10.,-1.63, -31.6));
  
  Param nuNum(nu.v()*dt.v()/dx.v()/dx.v());
  
  std::cout << "Data initialization..." << endl;
 
  auto locomotive(asl::readSurface(input.v(), bl));
  
  asl::Block block(locomotive->getInternalBlock());
 
  auto tunnelMap(asl::generateDataContainerACL_SP<FlT>(block, 1, 1u));
  asl::initData(tunnelMap, generateTunnel(block));
 
  auto forceField(asl::generateDataContainerACL_SP<FlT>(block, 3, 1u));
  asl::initData(forceField, makeAVec(0.,0.,0.));
  
  std::cout << "Finished"<<endl;
  
  std::cout << "Numerics initialization..." << endl;
 
  asl::SPLBGK lbgk(new asl::LBGK(block,
                                 acl::generateVEConstant(FlT(nuNum.v())),
                                 &asl::d3q15()));
  
  lbgk->init();
  asl::SPLBGKUtilities lbgkUtil(new asl::LBGKUtilities(lbgk));
  lbgkUtil->initF(acl::generateVEConstant(.1,.0,.0));
 
  auto vfTunnel(asl::generatePFConstant(makeAVec(0.1,0.,0.)));
 
  std::vector<asl::SPNumMethod> bc;
  std::vector<asl::SPNumMethod> bcV;
 
  bc.push_back(generateBCVelocity(lbgk, vfTunnel, tunnelMap));
  bcV.push_back(generateBCVelocityVel(lbgk, vfTunnel, tunnelMap));
//  bcV.push_back(generateBCNoSlipRho(lbgk, tunnelMap));
  bc.push_back(generateBCNoSlip(lbgk,  locomotive));
  bcV.push_back(generateBCNoSlipVel(lbgk, locomotive));
//  bcV.push_back(generateBCNoSlipRho(lbgk, locomotive));
  bc.push_back(generateBCConstantPressureVelocity(lbgk, 1., makeAVec(0.1,0.,0.), {asl::X0, asl::XE}));
 
  initAll(bc);
  initAll(bcV);
 
  auto computeForce(generateComputeSurfaceForce(lbgk, forceField, locomotive));
  computeForce->init();
  
  cout << "Finished" << endl;
  cout << "Computing..." << endl;
  asl::Timer timer;
 
  asl::WriterVTKXML writer(appParamsManager.getDir() + "locomotive_laminar");
  writer.addScalars("locomotive", *locomotive);
  writer.addScalars("tunnel", *tunnelMap);
  writer.addScalars("rho", *lbgk->getRho());
  writer.addVector("v", *lbgk->getVelocity());
  writer.addVector("force", *forceField);
 
  executeAll(bc);
  executeAll(bcV);
  computeForce->execute();
 
  writer.write();
 
  timer.start();
  for(unsigned int i(1); i < 2001; ++i)
  {
    lbgk->execute();
    executeAll(bc);
    if(!(i%200))
    {
      cout<<i<<endl;
      executeAll(bcV);
      computeForce->execute();
      writer.write();
    }
  }
  timer.stop();
  
  cout << "Finished" << endl; 
 
  cout << "Computation statistic:" << endl;
  cout << "Real Time = " << timer.realTime() << "; Processor Time = "
     << timer.processorTime() << "; Processor Load = "
     << timer.processorLoad() * 100 << "%" << endl;
 
  return 0;
}