A second-order k-/e turbulence model is proposed. It has been obtained by average velocity spatial derivatives series expansion (up to the second order, include d) of every correlation function including Reynolds stress tensor - within the exact equations far turbulent energy and its dissipation rate of a non-compressible liquid. The proposed model does contain only model constants, no model functions are used. Higher than first order Reynolds stress tensor series expansion allows taking into account additional effects related with turbulence anisotropy. The main reason far this work to be handed out here, lies in the fact that it proves far the first time (as we know) being possible modelling every term of the exact energy dissipation rate equation and to build thus a physically correct turbulence mode!. Considering once more the very special accuracy of methods and valuability of results worked out by Dr Mikhin, it has been assessed this work be worth reading for most people with deep interests in Fluid-Dynamics, Engineering,- and Fundamental as well as Applied Physics.

Mikhin Second-Order k-e Turbulence Model (*)

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2004-01-17

Abstract

A second-order k-/e turbulence model is proposed. It has been obtained by average velocity spatial derivatives series expansion (up to the second order, include d) of every correlation function including Reynolds stress tensor - within the exact equations far turbulent energy and its dissipation rate of a non-compressible liquid. The proposed model does contain only model constants, no model functions are used. Higher than first order Reynolds stress tensor series expansion allows taking into account additional effects related with turbulence anisotropy. The main reason far this work to be handed out here, lies in the fact that it proves far the first time (as we know) being possible modelling every term of the exact energy dissipation rate equation and to build thus a physically correct turbulence mode!. Considering once more the very special accuracy of methods and valuability of results worked out by Dr Mikhin, it has been assessed this work be worth reading for most people with deep interests in Fluid-Dynamics, Engineering,- and Fundamental as well as Applied Physics.
Rapporto tecnico;Fisica;Fluidodinamica
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/20.500.12079/6994
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