locomotive_stability.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/aslVectors.h>
#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 generateNozzels(asl::Block & bl)
{
 
  double y(10.33);
  double z(3.08);
  double h(1.);
  double rNozzel(.3);
  double n(4.);
  double x0(-20.);
  double xE(-6.); 
 
  double dx(bl.dx);
 
  asl::SPDistanceFunction res(generateDFCylinder(rNozzel, 
                                                 makeAVec(0., 0., h), 
                                                 makeAVec(x0, y, z + h * .5)));
  for(unsigned int i(1); i < n; ++i)
    res = res | generateDFCylinder(rNozzel, 
                                     makeAVec(0., 0., h), 
                                     makeAVec(x0 + i * (xE-x0)/n, y, z+h*.5)); 
  return normalize(res, 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_stability",
                                                     "1.0");
  asl::Parameter<string> input("input", "path to the geometry input file");
  appParamsManager.load(argc, argv);
  
  Param dx(0.25);
  Param dt(1.);
  Param nu(.01);
  
  Param nuNum(nu.v()*dt.v()/dx.v()/dx.v());
  
  std::cout << "Data initialization... " << flush;
 
  auto locomotive(asl::readSurface(input.v(), dx.v(), .5, 1., 0., 1., 2., 4.));
  
  asl::Block block(locomotive->getInternalBlock());
 
  auto forceField(asl::generateDataContainerACL_SP<FlT>(block, 3, 1u));
  asl::initData(forceField, makeAVec(0., 0., 0.));
  
  std::cout << "Finished" << endl;
  
  std::cout << "Numerics initialization... " << flush;
 
  asl::SPLBGK lbgk(new asl::LBGK(block, 
                       acl::generateVEConstant(FlT(nu.v())),  
                       &asl::d3q15()));
  
  lbgk->init();
  asl::SPLBGKUtilities lbgkUtil(new asl::LBGKUtilities(lbgk));
  lbgkUtil->initF(acl::generateVEConstant(.1,.0,.05));
 
  auto vfTunnel(asl::generatePFConstant(makeAVec(0.1,0.,0.)));
 
  std::vector<asl::SPNumMethod> bc;
  std::vector<asl::SPNumMethod> bcV;
 
  auto nozzelsMap(asl::generateDataContainerACL_SP<FlT>(block, 1, 1u));
  asl::initData(nozzelsMap, generateNozzels(block));
 
  
  bc.push_back(generateBCNoSlip(lbgk,  locomotive));
  bcV.push_back(generateBCNoSlipVel(lbgk, locomotive));
  bc.push_back(generateBCConstantPressureVelocity(lbgk, 1., 
                                                  makeAVec(0.1,0.,0.05), 
                                                  {asl::X0, asl::XE,asl::Y0,asl::YE,asl::Z0,asl::ZE}));
  bc.push_back(generateBCConstantPressureVelocity(lbgk, 1., makeAVec(0.,0.,-0.1),  nozzelsMap));
  initAll(bc);
  initAll(bcV);
 
  auto computeForce(generateComputeSurfaceForce(lbgk, forceField, locomotive));
  computeForce->init();
  
 
  std::cout << "Finished" << endl;
  std::cout << "Computing..." << endl;
 
  asl::WriterVTKXML writer(appParamsManager.getDir() + "locomotive_stability");
  writer.addScalars("locomotive", *locomotive);
  writer.addScalars("nozzels", *nozzelsMap);
  writer.addScalars("rho", *lbgk->getRho());
  writer.addVector("v", *lbgk->getVelocity());
  writer.addVector("force", *forceField);
 
  executeAll(bc);
  executeAll(bcV);
  computeForce->execute();
 
  writer.write();
 
  asl::Timer timer, timer1, timer2;
  timer.start();
  for(unsigned int i(1); i < 40001; ++i)
  {
    lbgk->execute();
    executeAll(bc);
    if(!(i%1000))
    {
      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;
}