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nwj_001

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[求助] 求助:帮助下列fluent vis_res调整错误在哪里?

#include "udf.h"

#define kf 5.0e-8

#define ku 4.0e-4

#define aa 1.2

#define bb 6.0

DEFINE_PROFILE(vis_res,t,i)
{
real temp, kt, u, vv;

cell_t c;

begin_c_loop(c,t)
{
temp = C_T(c,t)-273.0;

if (temp > 0)

  {kt = kf + ku/(1.0+exp(-1.0*temp/aa + bb));

    u = 0.00179/(1.0+0.0357*temp+0.00018*temp*temp);}

else

   {kt = kf;
    u = 0.00179;}

vv = 9800.0/(kt*u);

F_PROFILE(c,t,i) = vv;
}
end_c_loop(c,t)
}
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