Perte_Charge_Isotrope_VEF_P1NC.cpp

/****************************************************************************
* Copyright (c) 2026, CEA
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
* 3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*****************************************************************************/
 
#include <Perte_Charge_Isotrope_VEF_P1NC.h>
#include <Motcle.h>
#include <Equation_base.h>
 
Implemente_instanciable(Perte_Charge_Isotrope_VEF_P1NC,"Perte_Charge_Isotrope_VEF_P1NC",Perte_Charge_VEF);
// XD perte_charge_isotrope source_base perte_charge_isotrope BRACE Isotropic pressure loss (available in VEF and
// XD_CONT PolyMAC_CDO).
// XD attr lambda chaine lambda_u REQ Function for loss coefficient which may be Reynolds dependant (Ex: 64/Re).
// XD attr diam_hydr champ_don_base diam_hydr REQ Hydraulic diameter value.
// XD attr sous_zone chaine sous_zone OPT Optional sub-area where pressure loss applies.
// XD attr regul bloc_lecture regul OPT Optional parameter for pressure drop coefficient regulation on target flow rate.
// XD attr surface bloc_lecture surface OPT Optional parameter for surface used to impose the pressure drop.
 
Sortie& Perte_Charge_Isotrope_VEF_P1NC::printOn(Sortie& s ) const
{
  return s << que_suis_je() << finl;
}
 
Entree& Perte_Charge_Isotrope_VEF_P1NC::readOn(Entree& s )
{
  Perte_Charge_VEF::readOn(s);
  return s;
}
 
////////////////////////////////////////////////////////////////
//                                                            //
//           Fonction principale : perte_charge               //
//                                                            //
////////////////////////////////////////////////////////////////
 
void Perte_Charge_Isotrope_VEF_P1NC::coeffs_perte_charge(const DoubleVect& u, const DoubleVect& pos,
                                                         double t, double norme_u, double dh, double nu, double reynolds, double& coeff_ortho, double& coeff_long,double& u_l, DoubleVect& v_valeur) const
{
  // Calcul de lambda
  lambda.setVar(0,reynolds);
  lambda.setVar(1,t);
  lambda.setVar(2,pos[0]);
  if (dimension>1)
    lambda.setVar(3,pos[1]);
  if (dimension>2)
    lambda.setVar(4,pos[2]);
 
  // Calcul du resultat
  coeff_ortho=lambda.eval()*norme_u/2./dh;
  coeff_long=coeff_ortho;
  // v ne sert pas, car coeff_ortho=coeff_long
  //  for (int dim=0;dim<dimension;dim++)
  //  p_charge[dim] = -lambda.eval()*norme_u/2./dh*u[dim];
  u_l=0;
}