[hlmehr]

Hi, i'm currently new at UDF, so apologies. I'll tell you the details:I have the objective:
Change the inlet velocity which depends on the temperature of the specific Area on which flow is directed, as shown in the figure. I have a code which changes velocity with time. i.e

%%%%%%%%%%%%%%%%%%
DEFINE_PROFILE(velocity_magnitude, t, i)
{
real velocity;
real the_current_time;
face_t f;

the_current_time = CURRENT_TIME;

if ((the_current_time>=0) && (the_current_time<10))
{
velocity=3;
}
if ((the_current_time>=10)
{
velocity=1.5;
}
}
%%%%%%%%%%%%
But i want to make a code which changes the velocity as the temperature of the area only on which flow is directed (shown in figure) changes eg if T>20 v=3, T<20 v=1.5.
If anyone can help with this i'll be grateful. Thanks!
Regards