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-   -   Flapping simulation (http://www.cfd-online.com/Forums/fluent/36782-flapping-simulation.html)

M-A May 28, 2005 04:50

Flapping simulation
 
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

Rajon May 28, 2005 23:23

Re: Flapping simulation
 
Hi

I think a simple simulation can be done with inviscid incompressible flow. but about convergence, is your udf correct?

Rajon

Luca May 30, 2005 03:36

Re: Flapping simulation
 
Hi! how are you imposing velocity? With an adjust function or a profile function? What are changing by UDF? Luca

M-A June 2, 2005 04:46

Re: Flapping simulation
 
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 '). so i have a udf that change the x velocity and add a term to x momentum.

bye


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