Dear All,

Could you tell me how to add a source term in to the Y mom. Eq.?

Could you forward me some piece of UDF program?

Thank you very much in advance.

Rucy

You can find it in the define menu. define->boundary conditions. A panel will open, in which there are two columns, in the right column select the zone you want to add the source. Push the "set" button and there will be a new panel. In the panel just select the source term. you will find the Y mom Eq, select the fucntion you define, that is OK.

DEFINE_SOURCE(example, c, t)

{

float source;

float pp, tt, xx;

pp = C_P(c,t);

tt = C_T(c,t);

xx = C_U(c,t);

source = pp*tt/xx;

return source; }

Dear Sir,

Thank you very much.

Could you tell me how to find the related manual of Fluent, or any related information, to write UDF?

I still do not know the meaning of: (example, c, t) ?

Any way, thank you very much.

Rucy