Transient Velocity Inlet for an airfoil !
 

Hi,

I am trying to simulate the flow around an airfoil with an oscillating velocity inlet. I wanna keep constant the velocity's value (10m/s) but modify the angle of attack [-8deg ; 8deg]

I used the tutorial about the Transient Velocity Inlet Profile for Flow in a Tube (http://202.118.250.111:8080/fluent/F...df/node230.htm).

So, i created two different files, one for the unsteady in x-direction and the other for the y-direction. The thing is, i can select only one file under Fluent.

If someone, would be able to help me.

Cheers,

Titasse

You need to read in 2 different vel profiles.
After doing this, when you set ur vel boundary condition, select 'components' and you can choose each of the vel profiles.
Hope this helps.

It is what i do, but i can compilate only one UDF file each time.
For exemple, i compilated the file in x-direction, i setted up in BC for x and after that i compilated the file in y-direction but my BC for x vanished.

Thank you for your help.

Titasse

I'm not too sure if what you are saying is right, coz I've complied multiple UDFs for a single case file.
Since you just need a velocity profile, instead of a UDF can you use read a profile file? (Read-> Profile) Coz this I know for sure works. See Fluent manual for the profile file format.
Hope this helps.