Help required...udf
 

Hey guys,

I have an 2d L shaped pipe.fluid enters from the side horisontal part of L and makes a 90 degree turn and goes out of the top section of the L. I was using variable inlet velocity using the udf example provided in the manual. I was getting good results. Now I changed the L section to a U shape.with fluid flowing down from the right vertical part and making a 180 degree and flowing out through the left vertical. I used the same udf in the manual with changes in the x and y system. But now somehow this variable inlet velocity is not being taken. I dont understand the reason. Please help me out

Thanks in advance

Derick