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Grid sizing for DES

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Old   August 27, 2007, 02:04
Default Grid sizing for DES
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AAA
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Hi All

Since the DES model uses both the k-e model for the near wall flow and the LES model for the flow far in the field, and knowing that the LES uses the grid size for filtering, how can I specify the right grid size so that the LES would work properly?
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Old   August 28, 2007, 17:24
Default Re: Grid sizing for DES
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Joe
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http://portal.acm.org/ft_gateway.cfm...TOKEN=35797720
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Old   August 28, 2007, 19:18
Default Re: Grid sizing for DES
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Thank you for the help Joe. I already enjoyed reading this article some time back, which I found very informative. But it doesn't explicitly say what grid size to use. My application involves velocities in the order of 1 m/s. The problem I'm facing is how to accurately and effectively distribute the grids in both k-e and LES regions?

Kind regards
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Old   August 28, 2007, 19:54
Default Re: Grid sizing for DES
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Joe
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Use kw instead of ke.
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