Exemplo n.º 1
0
void LoadBCE_fromFile(thrust::host_vector<Real3> &posRadBCE, // do not set the
                                                             // size here since
                                                             // you are using
                                                             // push back later
                      std::string fileName) {
  std::string ddSt;
  char buff[256];
  int numBce = 0;
  const int cols = 3;
  std::cout << "  reading BCE data from: " << fileName << " ...\n";
  std::ifstream inMarker;
  inMarker.open(fileName);
  if (!inMarker) {
    std::cout << "   Error! Unable to open file: " << fileName << std::endl;
  }
  getline(inMarker, ddSt);
  Real q[cols];
  while (getline(inMarker, ddSt)) {
    std::stringstream linestream(ddSt);
    for (int i = 0; i < cols; i++) {
      linestream.getline(buff, 50, ',');
      q[i] = atof(buff);
    }
    posRadBCE.push_back(mR3(q[0], q[1], q[2]));
    numBce++;
  }

  std::cout << "  Loaded BCE data from: " << fileName << std::endl;
}
Exemplo n.º 2
0
// =============================================================================
// note, the function in the current implementation creates boundary BCE (zero
// velocity)
// x=1, y=2, z =3; therefore 12 means creating markers on the top surface
// parallel to xy plane,
// similarly -12 means bottom face paralel to xy. similarly 13, -13, 23, -23
void CreateBCE_On_Box(thrust::host_vector<Real3> &posRadBCE, const Real3 &hsize,
                      int face, SimParams *paramsH) {
  Real initSpace0 = paramsH->MULT_INITSPACE * paramsH->HSML;
  int nFX = ceil(hsize.x / (initSpace0));
  int nFY = ceil(hsize.y / (initSpace0));
  int nFZ = ceil(hsize.z / (initSpace0));

  Real initSpaceX = hsize.x / nFX;
  Real initSpaceY = hsize.y / nFY;
  Real initSpaceZ = hsize.z / nFZ;

  int2 iBound = mI2(-nFX, nFX);
  int2 jBound = mI2(-nFY, nFY);
  int2 kBound = mI2(-nFZ, nFZ);

  switch (face) {
  case 12:
    kBound = mI2(nFZ - paramsH->NUM_BOUNDARY_LAYERS + 1, nFZ);
    break;
  case -12:
    kBound = mI2(-nFZ, -nFZ + paramsH->NUM_BOUNDARY_LAYERS - 1);
    break;
  case 13:
    jBound = mI2(nFY - paramsH->NUM_BOUNDARY_LAYERS + 1, nFY);
    break;
  case -13:
    jBound = mI2(-nFY, -nFY + paramsH->NUM_BOUNDARY_LAYERS - 1);
    break;
  case 23:
    iBound = mI2(nFX - paramsH->NUM_BOUNDARY_LAYERS + 1, nFX);
    break;
  case -23:
    iBound = mI2(-nFX, -nFX + paramsH->NUM_BOUNDARY_LAYERS - 1);
    break;
  default:
    printf("wrong argument box bce initialization\n");
    break;
  }

  for (int i = iBound.x; i <= iBound.y; i++) {
    for (int j = jBound.x; j <= jBound.y; j++) {
      for (int k = kBound.x; k <= kBound.y; k++) {
        Real3 relMarkerPos =
            mR3(i * initSpaceX, j * initSpaceY, k * initSpaceZ);

        if ((relMarkerPos.x < paramsH->cMin.x ||
             relMarkerPos.x > paramsH->cMax.x) ||
            (relMarkerPos.y < paramsH->cMin.y ||
             relMarkerPos.y > paramsH->cMax.y) ||
            (relMarkerPos.z < paramsH->cMin.z ||
             relMarkerPos.z > paramsH->cMax.z)) {
          continue;
        }
        posRadBCE.push_back(relMarkerPos);
      }
    }
  }
}
Exemplo n.º 3
0
void CreateBCE_On_Cylinder(thrust::host_vector<Real3> &posRadBCE, Real cyl_rad,
                           Real cyl_h, SimParams *paramsH) {
  // Arman : take care of velocity and w stuff for BCE
  Real spacing = paramsH->MULT_INITSPACE * paramsH->HSML;
  for (Real s = -0.5 * cyl_h; s <= 0.5 * cyl_h; s += spacing) {
    Real3 centerPointLF = mR3(0, s, 0);
    posRadBCE.push_back(centerPointLF);
    for (Real r = spacing; r < cyl_rad - paramsH->solidSurfaceAdjust;
         r += spacing) {
      Real deltaTeta = spacing / r;
      for (Real teta = .1 * deltaTeta;
           teta < 2 * chrono::CH_C_PI - .1 * deltaTeta; teta += deltaTeta) {
        Real3 BCE_Pos_local =
            mR3(r * cos(teta), 0, r * sin(teta)) + centerPointLF;
        posRadBCE.push_back(BCE_Pos_local);
      }
    }
  }
}
Exemplo n.º 4
0
// =============================================================================
void CreateBCE_On_Sphere(thrust::host_vector<Real3> &posRadBCE, Real rad,
                         SimParams *paramsH) {
  Real spacing = paramsH->MULT_INITSPACE * paramsH->HSML;

  for (Real r = spacing; r < rad - paramsH->solidSurfaceAdjust; r += spacing) {
    Real deltaTeta = spacing / r;
    Real deltaPhi = deltaTeta;

    for (Real phi = .1 * deltaPhi; phi < chrono::CH_C_PI - .1 * deltaPhi;
         phi += deltaPhi) {
      for (Real teta = .1 * deltaTeta;
           teta < 2 * chrono::CH_C_PI - .1 * deltaTeta; teta += deltaTeta) {
        Real3 BCE_Pos_local = mR3(r * sin(phi) * cos(teta),
                                  r * sin(phi) * sin(teta), r * cos(phi));
        posRadBCE.push_back(BCE_Pos_local);
      }
    }
  }
}