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April 14, 2008, 06:35 |
Cell limit
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#1 |
New Member
Ryan Middleton
Join Date: Mar 2009
Posts: 17
Rep Power: 17 |
Hi,
I am using OpenFOAM to calculate drag and moment coefficients for an entire aircraft. I am using Gambit for the mesh creation and use fluentMeshToFoam to convert the .msh file. I have had success solving 3D airfoils. However, I have run into a problem when trying to convert an entire aircraft mesh. It has around 40 million cells, and I am wondering if there is a cell limit for OpenFOAM or the fluentMeshToFoam command? I have successfully solved a smaller aircraft with 17 million cells. I have ensured there are no internal walls left undefined in Gambit. Thanks very much for any help. Ryan |
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April 14, 2008, 06:47 |
The first limit you will hit i
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#2 |
Senior Member
Hrvoje Jasak
Join Date: Mar 2009
Location: London, England
Posts: 1,904
Rep Power: 33 |
The first limit you will hit is with the integer size (in Gambit, I would guess). You are safe up to approx 768 million cells; for larger meshes, there may be trouble.
Enjoy, Hrv
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Hrvoje Jasak Providing commercial FOAM/OpenFOAM and CFD Consulting: http://wikki.co.uk |
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