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definition of TKE and its relationship to buoyancy

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Old   December 10, 2007, 17:34
Default definition of TKE and its relationship to buoyancy
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In wiki, TKE is defined as "Turbulent Kinetic Energy (TKE) is the mean kinetic energy per unit mass associated with eddies in turbulent flow. It is a concept used to assess what contribution to buoyancy is brought by turbulence." I don't understand how TKE can be used to assess the contribution to buoyancy from turbulence. Could somebody explain that to me, please? Thank you very much.
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