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diff_metvar.c
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#include <stdio.h>
#include <math.h>
#include <time.h>
#include "structdef.h"
extern Model Mod;
void diff_metvar()
{
int i,j,sz,h,nt;
sz = Mod.M_Nutr.sz;
/*printf("15 here : dt : %f \n",Mod.M_Nutr.dt);*/
nt = (int)(1.0/Mod.M_Nutr.dt);
/*printf("1/dt: %f \n",1.0/Mod.M_Nutr.dt);
printf("nt: %d \n",nt);*/
for (h=0; h<nt; h++)
{
for (i=1; i<sz-1; i++)
{
for (j=1; j<sz-1; j++)
{
if(Mod.M_Nutr.S[i][j]>0.0)
{
Mod.M_Nutr.S[i][j] = Mod.M_Nutr.S[i][j] + Mod.M_Nutr.d0*Mod.M_Nutr.d0*Mod.M_Nutr.dt/Mod.M_Nutr.tau/Mod.M_Nutr.dx/Mod.M_Nutr.dx*(
0.5*Mod.M_Nutr.DSm[i][j]*Mod.M_Nutr.DSm[i-1][j]/((Mod.M_Nutr.DSm[i][j]+Mod.M_Nutr.DSm[i-1][j]))*(Mod.M_Nutr.S[i-1][j] - Mod.M_Nutr.S[i][j])
+ 0.5*Mod.M_Nutr.DSm[i][j]*Mod.M_Nutr.DSm[i+1][j]/((Mod.M_Nutr.DSm[i][j]+Mod.M_Nutr.DSm[i+1][j]))*(Mod.M_Nutr.S[i+1][j] - Mod.M_Nutr.S[i][j])
+ 0.5*Mod.M_Nutr.DSm[i][j]*Mod.M_Nutr.DSm[i][j-1]/((Mod.M_Nutr.DSm[i][j]+Mod.M_Nutr.DSm[i][j-1]))*(Mod.M_Nutr.S[i][j-1] - Mod.M_Nutr.S[i][j])
+ 0.5*Mod.M_Nutr.DSm[i][j]*Mod.M_Nutr.DSm[i][j+1]/((Mod.M_Nutr.DSm[i][j]+Mod.M_Nutr.DSm[i][j+1]))*(Mod.M_Nutr.S[i][j+1] - Mod.M_Nutr.S[i][j])
) - Mod.M_Nutr.dt*Mod.M_Nutr.kS[i][j];
}
if(Mod.M_Nutr.S[i][j]<=0.0)
{
Mod.M_Nutr.S[i][j] = Mod.M_Nutr.S[i][j] + Mod.M_Nutr.d0*Mod.M_Nutr.d0*Mod.M_Nutr.dt/Mod.M_Nutr.tau/Mod.M_Nutr.dx/Mod.M_Nutr.dx*(
0.5*Mod.M_Nutr.DSm[i][j]*Mod.M_Nutr.DSm[i-1][j]/((Mod.M_Nutr.DSm[i][j]+Mod.M_Nutr.DSm[i-1][j]))*(Mod.M_Nutr.S[i-1][j] - Mod.M_Nutr.S[i][j])
+ 0.5*Mod.M_Nutr.DSm[i][j]*Mod.M_Nutr.DSm[i+1][j]/((Mod.M_Nutr.DSm[i][j]+Mod.M_Nutr.DSm[i+1][j]))*(Mod.M_Nutr.S[i+1][j] - Mod.M_Nutr.S[i][j])
+ 0.5*Mod.M_Nutr.DSm[i][j]*Mod.M_Nutr.DSm[i][j-1]/((Mod.M_Nutr.DSm[i][j]+Mod.M_Nutr.DSm[i][j-1]))*(Mod.M_Nutr.S[i][j-1] - Mod.M_Nutr.S[i][j])
+ 0.5*Mod.M_Nutr.DSm[i][j]*Mod.M_Nutr.DSm[i][j+1]/((Mod.M_Nutr.DSm[i][j]+Mod.M_Nutr.DSm[i][j+1]))*(Mod.M_Nutr.S[i][j+1] - Mod.M_Nutr.S[i][j])
);
}
if(Mod.M_Nutr.O[i][j]>0.0)
{
Mod.M_Nutr.O[i][j] = Mod.M_Nutr.O[i][j] + Mod.M_Nutr.d0*Mod.M_Nutr.d0*Mod.M_Nutr.dt/Mod.M_Nutr.tau/Mod.M_Nutr.dx/Mod.M_Nutr.dx*(
0.5*Mod.M_Nutr.DOm[i][j]*Mod.M_Nutr.DOm[i-1][j]/((Mod.M_Nutr.DOm[i][j]+Mod.M_Nutr.DOm[i-1][j]))*(Mod.M_Nutr.O[i-1][j] - Mod.M_Nutr.O[i][j])
+ 0.5*Mod.M_Nutr.DOm[i][j]*Mod.M_Nutr.DOm[i+1][j]/((Mod.M_Nutr.DOm[i][j]+Mod.M_Nutr.DOm[i+1][j]))*(Mod.M_Nutr.O[i+1][j] - Mod.M_Nutr.O[i][j])
+ 0.5*Mod.M_Nutr.DOm[i][j]*Mod.M_Nutr.DOm[i][j-1]/((Mod.M_Nutr.DOm[i][j]+Mod.M_Nutr.DOm[i][j-1]))*(Mod.M_Nutr.O[i][j-1] - Mod.M_Nutr.O[i][j])
+ 0.5*Mod.M_Nutr.DOm[i][j]*Mod.M_Nutr.DOm[i][j+1]/((Mod.M_Nutr.DOm[i][j]+Mod.M_Nutr.DOm[i][j+1]))*(Mod.M_Nutr.O[i][j+1] - Mod.M_Nutr.O[i][j])
) - Mod.M_Nutr.dt*Mod.M_Nutr.kO[i][j];
}
if(Mod.M_Nutr.O[i][j]<=0.0)
{
Mod.M_Nutr.O[i][j] = Mod.M_Nutr.O[i][j] + Mod.M_Nutr.d0*Mod.M_Nutr.d0*Mod.M_Nutr.dt/Mod.M_Nutr.tau/Mod.M_Nutr.dx/Mod.M_Nutr.dx*(
0.5*Mod.M_Nutr.DOm[i][j]*Mod.M_Nutr.DOm[i-1][j]/((Mod.M_Nutr.DOm[i][j]+Mod.M_Nutr.DOm[i-1][j]))*(Mod.M_Nutr.O[i-1][j] - Mod.M_Nutr.O[i][j])
+ 0.5*Mod.M_Nutr.DOm[i][j]*Mod.M_Nutr.DOm[i+1][j]/((Mod.M_Nutr.DOm[i][j]+Mod.M_Nutr.DOm[i+1][j]))*(Mod.M_Nutr.O[i+1][j] - Mod.M_Nutr.O[i][j])
+ 0.5*Mod.M_Nutr.DOm[i][j]*Mod.M_Nutr.DOm[i][j-1]/((Mod.M_Nutr.DOm[i][j]+Mod.M_Nutr.DOm[i][j-1]))*(Mod.M_Nutr.O[i][j-1] - Mod.M_Nutr.O[i][j])
+ 0.5*Mod.M_Nutr.DOm[i][j]*Mod.M_Nutr.DOm[i][j+1]/((Mod.M_Nutr.DOm[i][j]+Mod.M_Nutr.DOm[i][j+1]))*(Mod.M_Nutr.O[i][j+1] - Mod.M_Nutr.O[i][j])
);
}
if(Mod.M_Cell.LD[i][j]==0)
{
Mod.M_Nutr.S[i][j] =1.0;
Mod.M_Nutr.O[i][j] =1.0;
}
}
}
}
/*printf("done\n");*/
}
void diff_chip(int rad_pellet)
{
int i,j,sz,h,nt;
int rad_sq=0;
sz = Mod.M_Nutr.sz;
/*printf("15 here : dt : %f \n",Mod.M_Nutr.dt);*/
nt = (int)(1.0/Mod.M_Nutr.dt);
/*printf("1/dt: %f \n",1.0/Mod.M_Nutr.dt);
printf("nt: %d \n",nt);*/
for (h=0; h<nt; h++)
{
for (i=1; i<sz-1; i++)
{
for (j=1; j<sz-1; j++)
{
rad_sq = (i-(sz/2-1))*(i-(sz/2-1))+(j-(sz/2-1))*(j-(sz/2-1));
if(rad_sq<=rad_pellet*rad_pellet)
{
if(Mod.M_Nutr.S[i][j]>0.0)
{
Mod.M_Nutr.S[i][j] = Mod.M_Nutr.S[i][j] + Mod.M_Nutr.d0*Mod.M_Nutr.d0*Mod.M_Nutr.dt/Mod.M_Nutr.tau/Mod.M_Nutr.dx/Mod.M_Nutr.dx*(
0.5*Mod.M_Nutr.DSm[i][j]*Mod.M_Nutr.DSm[i-1][j]/((Mod.M_Nutr.DSm[i][j]+Mod.M_Nutr.DSm[i-1][j]))*(Mod.M_Nutr.S[i-1][j] - Mod.M_Nutr.S[i][j])
+ 0.5*Mod.M_Nutr.DSm[i][j]*Mod.M_Nutr.DSm[i+1][j]/((Mod.M_Nutr.DSm[i][j]+Mod.M_Nutr.DSm[i+1][j]))*(Mod.M_Nutr.S[i+1][j] - Mod.M_Nutr.S[i][j])
+ 0.5*Mod.M_Nutr.DSm[i][j]*Mod.M_Nutr.DSm[i][j-1]/((Mod.M_Nutr.DSm[i][j]+Mod.M_Nutr.DSm[i][j-1]))*(Mod.M_Nutr.S[i][j-1] - Mod.M_Nutr.S[i][j])
+ 0.5*Mod.M_Nutr.DSm[i][j]*Mod.M_Nutr.DSm[i][j+1]/((Mod.M_Nutr.DSm[i][j]+Mod.M_Nutr.DSm[i][j+1]))*(Mod.M_Nutr.S[i][j+1] - Mod.M_Nutr.S[i][j])
) - Mod.M_Nutr.dt*Mod.M_Nutr.kS[i][j];
}
if(Mod.M_Nutr.S[i][j]<=0.0)
{
Mod.M_Nutr.S[i][j] = Mod.M_Nutr.S[i][j] + Mod.M_Nutr.d0*Mod.M_Nutr.d0*Mod.M_Nutr.dt/Mod.M_Nutr.tau/Mod.M_Nutr.dx/Mod.M_Nutr.dx*(
0.5*Mod.M_Nutr.DSm[i][j]*Mod.M_Nutr.DSm[i-1][j]/((Mod.M_Nutr.DSm[i][j]+Mod.M_Nutr.DSm[i-1][j]))*(Mod.M_Nutr.S[i-1][j] - Mod.M_Nutr.S[i][j])
+ 0.5*Mod.M_Nutr.DSm[i][j]*Mod.M_Nutr.DSm[i+1][j]/((Mod.M_Nutr.DSm[i][j]+Mod.M_Nutr.DSm[i+1][j]))*(Mod.M_Nutr.S[i+1][j] - Mod.M_Nutr.S[i][j])
+ 0.5*Mod.M_Nutr.DSm[i][j]*Mod.M_Nutr.DSm[i][j-1]/((Mod.M_Nutr.DSm[i][j]+Mod.M_Nutr.DSm[i][j-1]))*(Mod.M_Nutr.S[i][j-1] - Mod.M_Nutr.S[i][j])
+ 0.5*Mod.M_Nutr.DSm[i][j]*Mod.M_Nutr.DSm[i][j+1]/((Mod.M_Nutr.DSm[i][j]+Mod.M_Nutr.DSm[i][j+1]))*(Mod.M_Nutr.S[i][j+1] - Mod.M_Nutr.S[i][j])
);
}
if(Mod.M_Nutr.O[i][j]>0.0)
{
Mod.M_Nutr.O[i][j] = Mod.M_Nutr.O[i][j] + Mod.M_Nutr.d0*Mod.M_Nutr.d0*Mod.M_Nutr.dt/Mod.M_Nutr.tau/Mod.M_Nutr.dx/Mod.M_Nutr.dx*(
0.5*Mod.M_Nutr.DOm[i][j]*Mod.M_Nutr.DOm[i-1][j]/((Mod.M_Nutr.DOm[i][j]+Mod.M_Nutr.DOm[i-1][j]))*(Mod.M_Nutr.O[i-1][j] - Mod.M_Nutr.O[i][j])
+ 0.5*Mod.M_Nutr.DOm[i][j]*Mod.M_Nutr.DOm[i+1][j]/((Mod.M_Nutr.DOm[i][j]+Mod.M_Nutr.DOm[i+1][j]))*(Mod.M_Nutr.O[i+1][j] - Mod.M_Nutr.O[i][j])
+ 0.5*Mod.M_Nutr.DOm[i][j]*Mod.M_Nutr.DOm[i][j-1]/((Mod.M_Nutr.DOm[i][j]+Mod.M_Nutr.DOm[i][j-1]))*(Mod.M_Nutr.O[i][j-1] - Mod.M_Nutr.O[i][j])
+ 0.5*Mod.M_Nutr.DOm[i][j]*Mod.M_Nutr.DOm[i][j+1]/((Mod.M_Nutr.DOm[i][j]+Mod.M_Nutr.DOm[i][j+1]))*(Mod.M_Nutr.O[i][j+1] - Mod.M_Nutr.O[i][j])
) - Mod.M_Nutr.dt*Mod.M_Nutr.kO[i][j];
}
if(Mod.M_Nutr.O[i][j]<=0.0)
{
Mod.M_Nutr.O[i][j] = Mod.M_Nutr.O[i][j] + Mod.M_Nutr.d0*Mod.M_Nutr.d0*Mod.M_Nutr.dt/Mod.M_Nutr.tau/Mod.M_Nutr.dx/Mod.M_Nutr.dx*(
0.5*Mod.M_Nutr.DOm[i][j]*Mod.M_Nutr.DOm[i-1][j]/((Mod.M_Nutr.DOm[i][j]+Mod.M_Nutr.DOm[i-1][j]))*(Mod.M_Nutr.O[i-1][j] - Mod.M_Nutr.O[i][j])
+ 0.5*Mod.M_Nutr.DOm[i][j]*Mod.M_Nutr.DOm[i+1][j]/((Mod.M_Nutr.DOm[i][j]+Mod.M_Nutr.DOm[i+1][j]))*(Mod.M_Nutr.O[i+1][j] - Mod.M_Nutr.O[i][j])
+ 0.5*Mod.M_Nutr.DOm[i][j]*Mod.M_Nutr.DOm[i][j-1]/((Mod.M_Nutr.DOm[i][j]+Mod.M_Nutr.DOm[i][j-1]))*(Mod.M_Nutr.O[i][j-1] - Mod.M_Nutr.O[i][j])
+ 0.5*Mod.M_Nutr.DOm[i][j]*Mod.M_Nutr.DOm[i][j+1]/((Mod.M_Nutr.DOm[i][j]+Mod.M_Nutr.DOm[i][j+1]))*(Mod.M_Nutr.O[i][j+1] - Mod.M_Nutr.O[i][j])
);
}
}
if(rad_sq>rad_pellet*rad_pellet)
{
Mod.M_Nutr.S[i][j] =1.0;
Mod.M_Nutr.O[i][j] =1.0;
}
}
}
}
/*printf("done\n");*/
}