unsteady state inlet boundry condition
 

Hi all.. in my case the inlet velocity is continuously changes with time, firstly it increases then decreases. how i give this kind of inlet boundry condition... plz help me... In advance THANKS A LOTTTTTTTTT

Re: unsteady state inlet boundry condition
 

in fluent users guide see 'Defining Transient Boundary Conditions' under topic of 'Overview of Defining Boundary Conditions,

Re: unsteady state inlet boundry condition
 

thanks Usman...

it helps...if i have a velocity as function of time then how i enters it?????using udf??????

Re: unsteady state inlet boundry condition
 

Yes, you should define it as a DEFINE_PROFILE udf and then hook it to your inlet BC. There are plenty of examples of this in the udf-manual.

have fun! /M