offEquilibriumAdvectionDiffusionTemplates.h

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/* This file is part of the Palabos library.
 *
 * Copyright (C) 2011 FlowKit Sarl
 * Avenue de Chailly 23
 * 1012 Lausanne, Switzerland
 * E-mail contact: contact@flowkit.com
 *
 * The most recent release of Palabos can be downloaded at 
 * <http://www.palabos.org/>
 *
 * The library Palabos 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, either version 3 of the
 * License, or (at your option) any later version.
 *
 * The library 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 this program.  If not, see <http://www.gnu.org/licenses/>.
*/

/* Main author: Orestis Malaspinas
 */

#ifndef ADVECTION_DIFFUSION_OFF_EQUILIBRIUM_TEMPLATES_H
#define ADVECTION_DIFFUSION_OFF_EQUILIBRIUM_TEMPLATES_H

#include "core/globalDefs.h"
#include "core/cell.h"
#include "core/util.h"

namespace plb {

template<typename T, class Descriptor> struct offEquilibriumAdvectionDiffusionTemplatesImpl;

template<typename T, template<typename U> class Descriptor>
struct offEquilibriumAdvectionDiffusionTemplates {


static T fromJtoFneq(plint iPop, Array<T,Descriptor<T>::d> const& jNeq) {
    return offEquilibriumAdvectionDiffusionTemplatesImpl<T,typename Descriptor<T>::BaseDescriptor>
        ::fromJtoFneq(iPop, jNeq);
}

};  // struct offEquilibriumAdvectionDiffusionTemplates

template<typename T, class Descriptor>
struct offEquilibriumAdvectionDiffusionTemplatesImpl {

static T fromJtoFneq (
    plint iPop, Array<T,Descriptor::d> const& jNeq )
{
    T fNeq = (T)Descriptor::c[iPop][0]*jNeq[0];
    for (plint iD=1; iD<Descriptor::d; ++iD) 
    {
        fNeq += (T)Descriptor::c[iPop][iD]*jNeq[iD];
    }
    fNeq *= Descriptor::t[iPop] * Descriptor::invCs2;
            
    return fNeq;
}

};  // struct offEquilibriumAdvectionDiffusionTemplates

}  // namespace plb

#endif