Learning Forum

[194106015]

Below is the UDF i am using. I am getting same heat flux at al the faces  but which is not the case. Pls help in this regard

#include "udf.h"

DEFINE_PROFILE(mass_flux_AP, t, i)
{
    face_t f;
    real NV_VEC(farea);
    real mflux_ap;
    real area_ap;
    real heat_ap;
    real heat_flux_ap;

    begin_f_loop(f, t)
    {
        F_AREA(farea, f, t);              
        area_ap = NV_MAG(farea);              
        heat_ap = BOUNDARY_HEAT_FLUX(f, t);   
        heat_flux_ap= fabs(heat_ap /area_ap);
        Message(" heat_flux_ap=  %g \n", heat_flux_ap);

      if ( heat_flux_ap >= 12100000)  
      {
        mflux_ap = (heat_flux_ap * 0.0000004082) + 0.4538;
       }
     else 
       {
        mflux_ap = 5.39302;
       }
       

        F_PROFILE(f, t, i) = mflux_ap;        
    }
    end_f_loop(f, t)
}

[Rob]

OK, so mass flux is a function of heat flux. How are you setting the heat flux on a massflow boundary?