TKE meaning in Governmental ?

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What is Turbulence Kinetic Energy mean?

In fluid dynamics, turbulence kinetic energy (TKE) is the mean kinetic energy per unit mass associated with eddies in turbulent flow. Physically, the turbulence kinetic energy is characterised by measured root-mean-square (RMS) velocity fluctuations. In the Reynolds-averaged Navier Stokes equations, the turbulence kinetic energy can be calculated based on the closure method, i.e. a turbulence model.

Generally, the TKE is defined to be half the sum of the variances (square of standard deviations) of the velocity components:

k = 1 2 ( ( u ′ ) 2 ¯ + ( v ′ ) 2 ¯ + ( w ′ ) 2 ¯ ) , {\displaystyle k={\frac {1}{2}}\left(\,{\overline {(u')^{2}}}+{\overline {(v')^{2}}}+{\overline {(w')^{2}}}\,\right),}

where the turbulent velocity component is the difference between the instantaneous and the average velocity u ′ = u − u ¯ {\displaystyle u'=u-{\overline {u}}} , whose mean and variance are u ′ ¯ = 1 T ∫ 0 T ( u (reference

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Posted on 15 Oct 2024, this text provides information on Miscellaneous in Governmental related to Governmental. Please note that while accuracy is prioritized, the data presented might not be entirely correct or up-to-date. This information is offered for general knowledge and informational purposes only, and should not be considered as a substitute for professional advice.

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