Hi.

Can anyone give some good references to the Kolmogorov scale ?

John

Search with "Kolmogorov"

and then you can find the reply from "sylvain".

Hi John,

You can also refer to the book "Statistical Analysis and Modeling for Turbulent Flows" by P. A. Durbin and Peterson. There is a nice introduction and how Kolmogorov arrived at his famous "2/3(in the physical space) or -5/3(in the Fourier space) energy spectrum using dimensional analysis and also the author gives nice physical insight into the scaling analysis. Complexity of the problem lies in the ratio L/eta which goes as Reynolds to the power 3/4th. Suppose you are computationally solving a 3D problem. Then the no of grid points you need to resolve at Kolmogorov's scale goes as (L/eta)**3 that is (Re)**9/4. You can imagine yourself what it amounts to! L and eta refer to the size of the largest and smallest eddies. I hope this helps you.

gita