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November 18, 2019, 17:16
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Turbulent flow through a channel
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#1 |
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New Member
Indu Kant Deo
Join Date: Jun 2019
Posts: 2
Rep Power: 0  |
is the turbulence in core region of channel flow isotropic?
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November 19, 2019, 03:43
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#2 | |
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Senior Member
Filippo Maria Denaro
Join Date: Jul 2010
Posts: 6,882
Rep Power: 73 |
Quote:
This assumption depends also on the Re_tau number, the isotropy is better achieved for high Re numbers |
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November 19, 2019, 06:14
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#3 | |
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Senior Member
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Quote:
https://www.politesi.polimi.it/handle/10589/89603 on page 7, Fig. 1.1 a, shows exactly what mentioned by Filippo in terms of turbulence spectra, even if a clear reference to the isotropic one is missing. In practice you see that in the middle of the channel, with increasing Re number, the spectra tend to collapse toward the isotropic one. |
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| Tags |
| channel flow, turbulence |
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