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January 18, 2016, 19:32 |
detect checkerboarding in CFD code
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#1 |
Member
Kan
Join Date: Feb 2014
Location: Australia
Posts: 54
Rep Power: 12 |
Dear Forumer,
I understand that the checker-boarding issue is really annoying, but luckily some artificial ways have been introduced to resolve this problem. Can we automatically detect the checker-boarding issue during the simulation? What I mean is if there is any criteria for us to determine this oscillating cell. Then we can apply the artificial way to that specific cell in order to resolve the checker-boarding. I guess this question is quite similar to shock detection problem, hopefully there is a similar way to detect the checker-boarding. Thank you in advance, Kan |
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January 19, 2016, 04:02 |
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#2 | |
Senior Member
Filippo Maria Denaro
Join Date: Jul 2010
Posts: 6,764
Rep Power: 71 |
Quote:
During a simulation, you would see the velocity field having oscillations on a wavelenght of the decoupled cells |
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March 10, 2016, 00:02 |
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#3 | |
Member
Kan
Join Date: Feb 2014
Location: Australia
Posts: 54
Rep Power: 12 |
Quote:
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March 10, 2016, 03:34 |
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#4 |
Senior Member
Filippo Maria Denaro
Join Date: Jul 2010
Posts: 6,764
Rep Power: 71 |
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