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May 8, 2018, 10:51 |
Equivalent sand grain roughness alternatives
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#1 |
Member
Arun subramanian
Join Date: Jun 2016
Location: Florence,Italy
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Hello !
Are there approaches to model the roughness effects in the RANS equations for wall corrections other than the usual equivalent sand grain roughness ? I understand it is the most used approach , but i would like to explore others in RANS LES or DNS ( In DNS how the meshing is done ,instead of wall corrections) . Will be thankful if I can atleast get some papers or links to look at Cheers, Arun |
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May 8, 2018, 12:27 |
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#2 | |
Senior Member
Filippo Maria Denaro
Join Date: Jul 2010
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Quote:
There are interesting papers exploring DNS in some ways: https://www.researchgate.net/profile...-sandpaper.pdf https://www.cambridge.org/core/journ...A1D2E28F204A6C https://ntrs.nasa.gov/archive/nasa/c...0170000677.pdf |
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May 8, 2018, 12:32 |
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#3 |
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Arun subramanian
Join Date: Jun 2016
Location: Florence,Italy
Posts: 48
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Thank you very much , I will look into them. Do you have any papers that account roughness without using equivalent sand grain roughness please?
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May 8, 2018, 12:33 |
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#4 |
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Filippo Maria Denaro
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May 8, 2018, 12:34 |
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#5 |
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Arun subramanian
Join Date: Jun 2016
Location: Florence,Italy
Posts: 48
Rep Power: 10 |
Grazieeee!
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May 9, 2018, 12:38 |
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#6 |
Senior Member
Filippo Maria Denaro
Join Date: Jul 2010
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An example of LES application
https://www.researchgate.net/publica...cular_cylinder |
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Tags |
rans modelling, roughness, wall correction |
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