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[ÇóÖú] Workbench16.0 FluentÔÚ±àÒëUDFʱ³öÏÖ´íÎó

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error: undefined read macro
error object: ()

udfÎļþ£º
#include "udf.h"

real t, vis, s_mag, s_mag_c, sigma_y, n, k;
real c_1 = 1.0;
real c_2 = 1.0;
real c_3 = 1.0;
real c_4 = 1.0;
int ia;

define_property (cell_viscosity, c, t)
{

t=c_t(c, t);
s_mag =c_strain_rate_mag (c, t);

if (ia==0.0)
{
c_1 =rp_get_real ("c_1" );
c_2 =rp_get_real ("c_2" );
c_3 =rp_get_real ("c_3" );
c_4 =rp_get_real ("c_4" );
ia = 1;
}

k= c_1 ;
n= c_2 ;
sigma_y = c_3 ;
s_mag_c = c_4 ;

if (s_mag < s_mag_c)
{
vis = sigma_y*(2-s_mag/s_mag_c)/s_mag_c+k*((2-n)+(n-1)*s_mag/s_mag_c)*pow(s_mag_c, (n-1));
else
vis = sigma_y/s_mag+k*pow(s_mag, (n-1));
}
return vis;
}@wuming524
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