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jibreel December 26, 2013 15:01

Physical meaning of TKE
Can any body tell me the physical meaning of turbulent kinetic energy and eddy viscosity.

cfdnewbie December 26, 2013 15:11

The TKE is just the kinetic energy in the fluctuating parts of the flow, i.e. everything but the mean KE. It is thus a measure of the "strength" of the turbulence, and the distribution of KE across different length scales or eddies. Eddy viscosity a modelling or numerical concept, there is no physical meaning to it besides the fact that it aims to mimic the dissipative effect of the unresolved scales.

jibreel January 6, 2014 05:31

thanx very nice reply....

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