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what length scale should be used when calculating kolmogorov scale of fountain flow? |
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May 9, 2017, 01:22
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what length scale should be used when calculating kolmogorov scale of fountain flow?
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#1 |
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New Member
Join Date: Dec 2016
Posts: 4
Rep Power: 10  |
I want to use the LES and Laminar model in Fluent to simulate a fountain flow as shown in the attachment. So a fine mesh is needed. The Kolmogorov scale can be estimated by L (length scale) and Re (Reynolds number). My question is what is the length scale I should use when calculating Kolmogorov scale of the fountain flow?
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May 9, 2017, 03:16
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#2 |
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Senior Member
Filippo Maria Denaro
Join Date: Jul 2010
Posts: 6,897
Rep Power: 73 |
Do you want to compare LES to a laminar (no-model) solution?
The Kolmogorov lenght scale depends on the physical viscosity and dissipation http://www.eng.utah.edu/~mcmurtry/Turbulence/turblt.pdf |
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| Tags |
| fountain, kolmogorov scale |
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