Mesh--Automatic Sizing Unavailable for a Sphere

Mar 3, 2012


Issue:

When a CAD model of a sphere is opened in Autodesk® Simulation CFD, the volume mesh distribution cannot be defined using Automatic Mesh Sizing. The Size Adjustment slider is unavailable when the volume is selected.

Solution:

Solution

There are no edges on the volume of the sphere that the Automatic Mesh Sizing algorithm can use to represent a mesh distribution.

There are several ways to resolve this issue: 

  • Use Mesh Refinement Regions to assign / adjust the mesh on that sphere
  • Switch to Manual Mesh sizing, and manually assign a mesh distribution
  • Open the model in the CAD system, and split the volume so that there is an edge around the circumference.
  • Modify the CAD model by dividing the sphere into two hemispheres.

Products:

Simulation CFD

Versions:

2010;2011;2012;2013;2014

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