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Local mesh refinement definition in a DEFORMING dynamic mesh zone using Dynamic Mesh

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Old   February 9, 2016, 11:39
Default Local mesh refinement definition in a DEFORMING dynamic mesh zone using Dynamic Mesh
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Emanuele Burberi
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I'm trying to run a simulation of two meshing gears using 2.5D remeshing method of Dynamic meshing in FLUENT.
I have defined the deforming dynamic zone on the symmetry plane where gears are meshing and it works, as shown in the attached figure.
The problem is the following:
I need a high refinement level of grid into the approach region of the teeth where they reach the minimum distance (without contact because I have slightly increased the wheelbase dimension)*in order to appropriately detect the flow field info the meshing region. Since it seems that the user can define the grid refinement parameters , on the deforming dynamic zone, only exploiting constant values (for Minimum and Maximum Lenght Scale and Maximum Skeweness) the same*stringent refinement level is applied on all the symmetry and consequently on all the extruded dynamic domain which makes the computational costs of my calculation*too much expensive.

Does someone know if it is possible to define, by means of UDF for example, a local variation of*such*grid refinement parameters in order to makes grid refinement stringent into the meshing region and coarser in the otherpart of the dynamic domain?

Is it possible to define a local mesh refinement in a DEFORMING dynamic mesh zone using dynamic mesh method in FLUENT?
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2.5d remeshing, dynamic mesh, grid refinement parameter, local mesh refinement, maximum lenght scale

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