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 planar 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.

中文翻译：

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微分约束法：平面无动量湍流尾流中的局部平衡近似

摘要

结果表明，平面无动量湍流尾流问题中的局部平衡近似（垂直速度分量湍流涨落三重关联的代数参数化）是三阶闭合模型的微分约束。数值实验的结果证实了所使用的该三阶相关矩的已知代数参数化的可行性。