# Flapping simulation

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 May 28, 2005, 04:50 Flapping simulation #1 M-A Guest   Posts: n/a Dear friends, I'm trying to model the flow around a plunging naca 0012 airfoil (using udf to make a sinusoidal vel in and a source term.) but I can't get good convergence, suppose me some model (solver) for better convergence or a better way for simulation of flapping using fluent 6.0.12.(without moving mesh) Best

 May 28, 2005, 23:23 Re: Flapping simulation #2 Rajon Guest   Posts: n/a Hi I think a simple simulation can be done with inviscid incompressible flow. but about convergence, is your udf correct? Rajon

 May 30, 2005, 03:36 Re: Flapping simulation #3 Luca Guest   Posts: n/a Hi! how are you imposing velocity? With an adjust function or a profile function? What are changing by UDF? Luca

 June 2, 2005, 04:46 Re: Flapping simulation #4 M-A Guest   Posts: n/a Hi luca, I change velocity in velocity inlet with a priodic function and also I add a source term to momentum. my simulation Reynolds is about 10^6. as a first step in modeling I am trying to model edgewise oscillation (like this ← o â†'). so i have a udf that change the x velocity and add a term to x momentum. bye

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