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Physical meaning of TKE

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Old   December 26, 2013, 15:01
Default Physical meaning of TKE
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Ahmad jibreel
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Can any body tell me the physical meaning of turbulent kinetic energy and eddy viscosity.
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Old   December 26, 2013, 15:11
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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.
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Old   January 6, 2014, 05:31
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thanx very nice reply....
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