path: root/src/functors/analytical/frameChangeF3D.hh

/*  This file is part of the OpenLB library
 *
 *  Copyright (C) 2013, 2015 Gilles Zahnd, Mathias J. Krause
 *  Marie-Luise Maier
 *  E-mail contact: info@openlb.net
 *  The most recent release of OpenLB can be downloaded at
 *  <http://www.openlb.net/>
 *
 *  This program is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU General Public License
 *  as published by the Free Software Foundation; either version 2
 *  of the License, or (at your option) any later version.
 *
 *  This program 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 General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public
 *  License along with this program; if not, write to the Free
 *  Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 *  Boston, MA  02110-1301, USA.
*/

#ifndef FRAME_CHANGE_F_3D_HH
#define FRAME_CHANGE_F_3D_HH

#include<cmath>

#include "frameChangeF3D.h"
#include "frameChangeF2D.h"
#include "core/superLattice3D.h"
#include "dynamics/lbHelpers.h"  // for computation of lattice rho and velocity
#include "utilities/vectorHelpers.h"  // for normalize
#include "geometry/superGeometry3D.h"

#ifndef M_PI
#define M_PI 3.14159265358979323846
#endif

namespace olb {


template <typename T>
RotatingLinear3D<T>::RotatingLinear3D(std::vector<T> axisPoint_,
                                      std::vector<T> axisDirection_, T w_, T scale_)
  : AnalyticalF3D<T,T>(3), axisPoint(axisPoint_), axisDirection(axisDirection_),
    w(w_), scale(scale_) { }


template <typename T>
bool RotatingLinear3D<T>::operator()(T output[], const T x[])
{
  output[0] = (axisDirection[1]*(x[2]-axisPoint[2]) - axisDirection[2]*(x[1]-axisPoint[1]))*w*scale;
  output[1] = (axisDirection[2]*(x[0]-axisPoint[0]) - axisDirection[0]*(x[2]-axisPoint[2]))*w*scale;
  output[2] = (axisDirection[0]*(x[1]-axisPoint[1]) - axisDirection[1]*(x[0]-axisPoint[0]))*w*scale;
  return true;
}



template <typename T>
RotatingLinearAnnulus3D<T>::RotatingLinearAnnulus3D(std::vector<T> axisPoint_,
                                      std::vector<T> axisDirection_, T w_, T ri_, T ro_, T scale_)
  : AnalyticalF3D<T,T>(3), axisPoint(axisPoint_), axisDirection(axisDirection_),
    w(w_), ri(ri_), ro(ro_), scale(scale_) { }


template <typename T>
bool RotatingLinearAnnulus3D<T>::operator()(T output[], const T x[])
{

  if ( (sqrt((x[0]-axisPoint[0])*(x[0]-axisPoint[0])+(x[1]-axisPoint[1])*(x[1]-axisPoint[1])) < ri) || (sqrt((x[0]-axisPoint[0])*(x[0]-axisPoint[0])+(x[1]-axisPoint[1])*(x[1]-axisPoint[1])) >= ro) ) {
    output[0] = 0.;
    output[1] = 0.;
    output[2] = 0.;
  }
  else {
    T L[3];
    T si[3];
    T so[3];
    int sign1 = 1;
    int sign2 = 1;
    if ( (axisDirection[2]<