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#include "udf.h"
#include "math.h"
DEFINE_PROFILE(unsteady_pressure,thread,position)
{
face_t f;
real x[ND_ND];
real z;
begin_f_loop(f,thread)
{
F_CENTROID(x,f,thread);
z=x[2];
F_PROFILE(f,thread,position)=101325-101325/exp(z/36800);
}
end_f_loop(f,thread);
}
»¹ÓÐζȵÄ
#include "udf.h"
DEFINE_PROFILE(unsteady_temperature,thread,position)
{
real t,temperature;
face_t f;
real x[ND_ND];
begin_f_loop(f,thread)
  {
  F_CENTROID(x,f,thread);
   t=RP_Get_Real("flow-time";
     if((t>0)&&(t<=3600))
        {
           temperature=288;
           F_PROFILE(f,thread,position) =temperature;
        }
     else if((t>3600)&&(t<=86400))
        {
           temperature=5*sin(t-0.8)+292;
           F_PROFILE(f,thread,position) =temperature;
        }
     else
        {
           temperature=5*sin(t-0.8)+290;
           F_PROFILE(f,thread,position) =temperature;
        }
  }
end_f_loop(f,thread);
}
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