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Showing results 1 to 7 of 7 Search took 0.00 seconds. Search: Posts Made By: LuckyTran

Forum: Main CFD Forum August 1, 2023, 23:26

Replies: 17 Kolmogorov scale in less than fully developed turbulence Views: 451 Posted By LuckyTran I simply don't agree with your statement that... I simply don't agree with your statement that E(k) drops because k is increasing. Please don't attribute that to me.

Forum: Main CFD Forum August 1, 2023, 23:13

Replies: 17 Kolmogorov scale in less than fully developed turbulence Views: 451 Posted By LuckyTran Again, I clearly wrote that k is wavenumber. What... Again, I clearly wrote that k is wavenumber. What really is the difference between E(k) where k is wavenumber versus E(banana) where banana is wavenumber? I am not responsible for your...

Forum: Main CFD Forum August 1, 2023, 22:56

Replies: 17 Kolmogorov scale in less than fully developed turbulence Views: 451 Posted By LuckyTran I clearly wrote that k is wavenumber. If you... I clearly wrote that k is wavenumber. If you decide to use another symbol, that's up to you. If you have a heat transfer background like I do, k is also thermal conductivity. For physicists, k...

Forum: Main CFD Forum August 1, 2023, 21:39

Replies: 17 Kolmogorov scale in less than fully developed turbulence Views: 451 Posted By LuckyTran E(k) is the energy at the wavenumber k. The... E(k) is the energy at the wavenumber k. The energy per wavenumber k would be E(k)/k Honestly you should plot P(k) versus E(k) versus D(k) to answer your question, then it would be clearer. You are...

Forum: Main CFD Forum August 1, 2023, 13:46

Replies: 17 Kolmogorov scale in less than fully developed turbulence Views: 451 Posted By LuckyTran Dissipation is negligible as a mechanism of... Dissipation is negligible as a mechanism of turbulent transport when compared to production. Dissipation is obviously not negligible compared to itself. dx/x may be a small but dx/dx is O(1) ...

Forum: Main CFD Forum July 31, 2023, 22:43

Replies: 17 Kolmogorov scale in less than fully developed turbulence Views: 451 Posted By LuckyTran There is no inherent assumption that the large... There is no inherent assumption that the large eddy size is the same, they simply vanish. You can debate if you want to consider the largest scales becoming smaller or the smallest scales becoming...

Forum: Main CFD Forum July 31, 2023, 21:53

Replies: 17 Kolmogorov scale in less than fully developed turbulence Views: 451 Posted By LuckyTran What happens at low Reynolds numbers is, there is... What happens at low Reynolds numbers is, there is no longer separation of scales, no energy cascade, and the inertial length scale disappears. But there is always a dissipative scale, though it...

Showing results 1 to 7 of 7

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