[arunraj]

Hello everyone,

I am trying to estimate the velocity of fluid at the liquid-vapor interface in heat pipe. I used BOUNDARY_HEAT_FLUX(f,t); macro to get the flux and from there I calculated vel. However, ANSYS Fluent automatically turns off continuity and momentum. I am using parallel mode to operate fluent. I know this macro is not official but i want to give it a go.


#include "udf.h"

DEFINE_PROFILE(condenserliq, t, i)
{
#if RP_HOST
face_t f;
real NV_VEC(farea);
real hfg = 2360000.0;
real den = 998.2;
real heat = 0;
real area = 0;
real vel;

begin_f_loop(f, t)
{
F_AREA(farea, f, t);
area += NV_MAG(farea);
heat += BOUNDARY_HEAT_FLUX(f,t);
Message("heat = %g\n", heat);
vel = heat/(area * hfg * den);
Message("vel = %g\n", vel);
F_PROFILE(f,t,i) = vel;
}
end_f_loop(f, t)
#endif
}