uds self-programed convective flux
 

Hallo,

i want to program my own term for the convective flux. I used the example 4-89, udf manual. When i use a thetraeder mesh my uds makes mistakes. When i try to put 2 velocity components (Vx,Vy) at a wall the uds make mistakes too. Does somebody know why ? Does somebody know how the function F_FLUX(f,T) is programed, because when i use this function for the convective flux there are no mistakes. But for my problem i can´t use F_FLUX(f,t).

Thank you