使用动力学模型描述湍流

Pub Date : 2024-05-13 DOI:10.1134/S1064562424701953

B. N. Chetverushkin, A. E. Lutsky, E. V. Shilnikov

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引用次数: 0

摘要

摘要获得了描述湍流的封闭方程系统。利用平衡动力学方程推导出了交叉脉动力矩（\rho \overline {\Delta {{u}_{i}}\Delta {{u}_{k}} ）的附加方程，该方程曾用于获得准气体动力学方程组。文中给出了两股气流之间二维混合层问题的数值结果。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Description of Turbulent Flows Using a Kinetic Model

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Description of Turbulent Flows Using a Kinetic Model

A closed system of equations for describing turbulent flows is obtained. Additional equations for the cross pulsation moments \(\rho \overline {\Delta {{u}_{i}}\Delta {{u}_{k}}} \) are derived using a balanced kinetic equation, which was previously used to obtain a quasi-gasdynamic system of equations. Numerical results for the problem of a two-dimensional mixing layer between two flows are presented.

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