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Numerical simulation of momentumless turbulent wake dynamics in linearly stratified medium
Authors:O F Voropaeva  O A Druzhinin  G G Chernykh
Institution:1.Institute of Computational Technologies, Siberian Branch,Russian Academy of Sciences,Novosibirsk,Russia;2.Novosibirsk State University,Novosibirsk,Russia;3.Institute of Applied Physics,Russian Academy of Sciences,Nizhny Novgorod,Russia
Abstract:This paper presents comparison of two numerical models of the momentumless turbulent wake dynamics behind a body of revolution in a linearly stratified medium, namely, the model based on direct (DNS) numerical integration of Navier–Stokes equations in the Oberbeck–Boussinesq approximation and the mathematical model with application of a semi-empirical turbulence model of the third order. The results of calculations by these two models agree with the known experimental data.
Keywords:
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