vortex interaction in 2D
 

Hi,

I'm trying to simulate vortex interaction of 2 vortices (Rankine, Oseen, Burgers) in 2D with an approaching flow. Here's a sketch (the o s are the vortices):

vel.inlet------------wall-------------pressure outlet

--_____________________________

->----------------------------------------|

->----------------------------------------|

->--------------o-vortex-----------------|

->----------------------------------------|

->--------------o-vortex-----------------|

->----------------------------------------|

->----------------------------------------|

--______________________________

----------------wall

I already tried to model the vortices in gambit as faces (circles) and tried to define them as velocity inlets boundary conditions. Unfortunately, this didn't work when I exported the mesh!

Could an udf help? Can I adjust a udf as a velocity profile if there isn't any boundary?

How can I solve this problem? I'd appreciate any help!

Markus