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-   -   Structure vs unstructured meshes (http://www.cfd-online.com/Forums/main/6366-structure-vs-unstructured-meshes.html)

Des Aubery July 18, 2003 05:28

Structure vs unstructured meshes
 
Hi everyone,

I am busy trying to evaluate the impact of using a 'structured' vs an 'unstructured' mesh, in highly-complex flow domains.

The assumptions used for the heat-tranfer coefficient at the walls of internal shapes seem to run into some accuracy problems for 'unstructured' meshes, when compared to 'structured' meshes.

I would really appreciate advice here.

My models typically contain around 494+ included internal shapes.

I was hoping to use the CFD package to provide me the surface heat-transfer coefficients, without having to calculate bulk heat-transfer coefficients.

Thanks for your advice.

Regards,

Des Aubery... (adTherm Technology - Virtual Thermal Engineering)

Jim Park July 21, 2003 21:02

Re: Structure vs unstructured meshes
 
I think there was a pretty extensive debate of the structured - un-structured question recently here.

Try searching this forum, then the CFD-ONLINE archives. If your answer isn't there, you should at least have an idea of what to expect in the way of answers.

Des Aubery July 25, 2003 23:11

Re: Structure vs unstructured meshes
 
Hi Jim,

Thanks for your reply.

I had tried a search, but ended up with a lot of spurious data. Let me try again...

Best regards,

Des Aubery...


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