Hi there,

can DEFINE_HEAT_FLUX be used for CHT problems? is there any test cases for this UDF (not radiations cases)

for example, in fluid-wall coupling convective heat transfer problem, can it be used to modify the fluid-wall heat transfer coefficient?

In the figure that I uploaded, is h(T_f-T_interface)=-k_wall*(T_interface-T_wall)/d2 correct?, where h is the coefficient assigned using udf, k_wall is the wall conductivity.

DEFINE_HEAT_FLUX(heat_flux, f, t, c0, t0, cid, cir)

{

real h=2000.;

cid[1] = h;

cid[2] = h;

cid[0] = 0.;

cid[3] = 0.;

}

thanks,