vortex interaction in 2D -- CFD Online Discussion Forums

June 13, 2007, 06:17	vortex interaction in 2D	#1
bretti Guest Posts: n/a	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

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