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[mesh manipulation] Dynamic Mesh Diffusivity Problem |
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August 29, 2010, 11:50 |
Dynamic Mesh Diffusivity Problem
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Senior Member
Daniel
Join Date: Jul 2009
Location: Montreal, Canada
Posts: 156
Rep Power: 17 |
Hello all,
I am trying to implement a multi-element dynamic mesh (wing & flap) where both elements rotate independently (Structures.png). The latest issue is that of diffusivity in the dynamic mesh. The trailing edge of the flap is overlapping the surrounding mesh (structured - Trailing edge.png), causing errors and failure to complete any simulation (moveDynamicMesh, pimpleDyMFoam). I am confused because I use the same diffusivity (inverseDistance) that is used in tutorial wingMotion2D_pimpleDyMFoam, but in the wingMotion tutorial, the mesh surrounding the trailing edge does not perceptibly deform locally at all (attached - g.jpg). Can anyone suggest how I might fix this diffusivity problem? I have tried changing the code of inverseDistanceDiffusivity.C line 110 from Code:
faceDiffusivity_ = 1/fvc::interpolate(y_); Code:
faceDiffusivity_ = 100000/fvc::interpolate(y_); Code:
faceDiffusivity_ = 0.00001/fvc::interpolate(y_); Regards, Dan |
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