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-   -   Problem with alpha1 in Fsi (http://www.cfd-online.com/Forums/openfoam/104296-problem-alpha1-fsi.html)

Whyman July 6, 2012 06:36

Problem with alpha1 in Fsi
 
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Hi everybody,

I have this problem.

I'm trying to run an Fsi simulation, with a modified solver, which moves the mesh and the geometry on the basis of the dynamic mesh, like interDynFoam.

My problem is that when i launch the simulation, the variable alpha1 is greater than 1. I tried various solutions but i still can fix the problem.

You can see attached the difference between a fixed geometry/mesh and a moving geometry/mesh, for the same case. Alpha1 value is different.

Why?

Could you help me, please?

Thank you
Stefano


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