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-   -   [ICEM] Which topology is better. (http://www.cfd-online.com/Forums/ansys-meshing/108727-topology-better.html)

Far October 31, 2012 07:21

Which topology is better.
 
Hello

I am comparing the two topologies for the Ahmed body mesh and want to know your opinion that which topology is better: Topo1 or Topo2 and can you tell me how to create both topologies and why such difference is there even overall idea is the same.

Topo1

http://imageshack.us/a/img515/6133/topoa1.png
http://imageshack.us/a/img689/6971/topoa2.png

Topo2

http://imageshack.us/a/img809/4205/topob1.png
http://imageshack.us/a/img843/4733/topob2.png

siw October 31, 2012 07:56

Would the best topology (for this and any other Hexa mesh) only be determined by:

1) the mesh quality metrics.
2) the accuracy and mesh insensitivity (when the number of nodes are altered on the topology) on the CFD solution.

Far October 31, 2012 08:16

For both meshes min quality is 0.8-0.82 and min angle is 38-42.


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