V. N. Grebenev, A. G. Demenko, G. G. Chernykh, “Method of differential constraints: local equilibrium approximation in a momentumless flat turbulent wake”, Prikl. Mekh. Tekh. Fiz., 2021, Volume 62, Issue 3,Pages <nobr>38

This article is cited in 4 papers

Method of differential constraints: local equilibrium approximation in a momentumless flat turbulent wake

V. N. Grebenev^a, A. G. Demenko^bc, G. G. Chernykh^a

^a Federal Research Center for Information and Computational Technologies, 630090, Novosibirsk, Russia
^b Kutateladze Institute of Thermophysics, Siberian Branch, Russian Academy of Sciences, 630090, Novosibirsk, Russia
^c Novosibirsk State Technical University, 630073, Novosibirsk, Russia

Abstract: It is revealed that the local equilibrium approximation (algebraic parametrization of triple correlations of turbulent fluctuations of a vertical velocity component) in the problem of a plane momentumless turbulent wake is a differential constraint for a third-order closure model. The results of numerical experiments that confirm the feasibility of the used known algebraic parametrization of this third-order correlation moment are presented.

Keywords: method of differential constraints, semi-empirical turbulence models, algebraic representation of the third-order moment, numerical simulation.

UDC: 532.517.4

Received: 05.03.2021
Revised: 05.03.2021
Accepted: 29.03.2021

DOI: 10.15372/PMTF20210304