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#1 |
Senior Member
Weiqiang Liu
Join Date: Feb 2018
Posts: 278
Rep Power: 9 ![]() |
Hi all,
I am doing a reacting flow with fluent. While iterating, fluent will complain a warning: dasac failure at temperature continuing. However, iteration can continue without error. I am wondering why would this happen? will this effect final calculated results? Best regards Weiqiang |
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#2 |
Senior Member
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__________________
Regards, Vinerm PM to be used if and only if you do not want something to be shared publicly. PM is considered to be of the least priority. |
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#3 | |
Senior Member
Weiqiang Liu
Join Date: Feb 2018
Posts: 278
Rep Power: 9 ![]() |
Quote:
Thanks very much for the sharing. Best regards Weiqiang |
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#4 |
New Member
Garikai Marangwanda
Join Date: Dec 2013
Posts: 6
Rep Power: 12 ![]() |
From my experience with the error, here are my thoughts:
1. Try making the mesh courser, I read somewhere that the easiest way to fix the error is to fix your mesh (avoid unnecessary refinement), 2. If fixing the mesh is not an option, look into the turbulence models, usually a model that allows near-wall treatment options to be used can do the trick, 3. My go-to option personally is to shy away from mass flow inlet boundary specifications but rather perform necessary calculations so they become velocity inlets. I hope this helps someone. |
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Tags |
dasac failure, mechanism, reacting flow |
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