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Deforming Mesh in Fluent but Cells keep stretching!

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Old   January 7, 2014, 05:05
Default Deforming Mesh in Fluent but Cells keep stretching!
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david
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Hi,
I'm trying to create a dynamic mesh in Fluent. It's basically a square that that increases with height. I have been getting problems with the deforming of the mesh. Basically, the mesh keeps stretching rather than create new cells everytime it increases in height. It is a tetrahedral mesh so i cant use the layering method. I disabled the smoothness option and kept it to the remeshing option in the gui. Can anybody help? i have attached a picture of my problem. Hope to get some reply soon.
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Old   January 7, 2014, 12:17
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Hi,

What are the deforming conditions you imposed in the Dynamic mesh zone box?
Are the side walls set to deforming and the moving wall Rigid Body ?
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Old   January 7, 2014, 16:37
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the box (meshed as one entity) deforms as a rigid body and it's base is modelled as stationary.
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Old   January 8, 2014, 03:45
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Ok,
Maybe try to impose the following conditions on the surfaces :
- moving wall : rigid body
- opposite wall (to the moving one) : stationary
- side walls : deforming
(You don't need to impose any deforming condition on the box volume.)
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