av_mue.c 2.05 KB
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/*-----------------------------------------------------------------------------------------
 * Copyright (C) 2013  For the list of authors, see file AUTHORS.
 *
 * This file is part of DENISE.
 * 
 * DENISE 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, version 2.0 of the License only.
 * 
 * DENISE 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 DENISE. See file COPYING and/or <http://www.gnu.org/licenses/gpl-2.0.html>.
-----------------------------------------------------------------------------------------*/


#include "fd.h"

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void av_mue(float ** u, float ** uipjp,float ** rho){
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    extern int NX, NY, INVMAT1;
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    int i, j;
    float u1, u2, u3, u4;
    
    if(INVMAT1==3){
        
        for (j=1;j<=NY;j++){
            for (i=1;i<=NX;i++){
                
                uipjp[j][i]=4.0/((1.0/u[j][i])+(1.0/u[j][i+1])+(1.0/u[j+1][i])+(1.0/u[j+1][i+1]));
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                if((u[j][i]==0.0)||(u[j][i+1]==0.0)||(u[j+1][i]==0.0)||(u[j+1][i+1]==0.0)){
                    uipjp[j][i]=0.0;
                }
                
                
            }
        }
        
    }
    
    if(INVMAT1==1){
        
        for (j=1;j<=NY;j++){
            for (i=1;i<=NX;i++){
                
	            u1 = rho[j][i] * u[j][i] * u[j][i];
                u2 = rho[j][i+1] * u[j][i+1] * u[j][i+1];
                u3 = rho[j+1][i] * u[j+1][i] * u[j+1][i];
                u4 = rho[j+1][i+1] * u[j+1][i+1] * u[j+1][i+1];
                
                uipjp[j][i]=4.0/((1.0/u1)+(1.0/u2)+(1.0/u3)+(1.0/u4));
                if((u1==0.0)||(u2==0.0)||(u3==0.0)||(u4==0.0)){
                    uipjp[j][i]=0.0;
                }
                
            }
        }
        
    }
    
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}