[Vighnesh sny]

Hello there,
Im working on Ansys fluent. As I am new to UDF,need some suggesions.
How can i write a UDF program so that in a pipe having 2 points p1 and p2, i need to calculate all the variable parameters addressed in one program i.e calculate p1-p2 with varieing inlet velocity for regular interval of time say for first 100 sec velocity is v1 next 100 sec velocity is v2 and so on for 2000sec.
I have calculated manually using fluent where i give initial velocity manually everytime i.e. for velocity v1 i calculate p1,p2 @ time 0 to 100sec again change Initial velocity to v2, calculate p1 and p2 for 100 to 200 sec so on..

i need this to be done using a UDF program.

Note:
Solver pressure based
Time--> transient

Thanks,
Vighnesh