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-   -   non uniform velocity profile at inlet (http://www.cfd-online.com/Forums/fluent/41816-non-uniform-velocity-profile-inlet.html)

hiba July 22, 2006 15:26

non uniform velocity profile at inlet
 
hello,

is it possible to define a non uniform velocity profile as a boundary condition at a velocity inlet; that is, can i set the velocity profile at the inlet to be parabolic, for example, instead of constant? if yes, how?

thank you :)

Le July 23, 2006 00:08

Re: non uniform velocity profile at inlet
 
It is very easy. Please read the UDF manual file, you will know how to do. I remember that there is a example like what you want to do.

Ralf Schmidt July 25, 2006 03:32

Re: non uniform velocity profile at inlet
 
Hi!

There is another way:

write the profile as a table (x,y,vx,vz,vy or something like that) or take it from another simulation (with write profile).

Than, import the profile (file->read->profile) and use the vel. components as vel. components in the velocity inlet BC.

You may orientate the profile, look in the fluent manual, how that works.

Ralf


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