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Abstract <p>The equations for pulsation moments arising in the simulation of turbulent flows are derived on the basis of a kinetic model previously successfully used to obtain a quasi-gas dynamic system of equations. The construction of a mathematical model is presented for a two-dimensional flow of a weakly compressible gas. At the same time, tuning parameters are not actually used to obtain a closed system describing the turbulent flow as a whole. Calculations of turbulent flows in a plane channel and a mixing layer are given as an example.</p>

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Using a Kinetic Model to Find the Pulsation Moments of a Turbulent Flow

  • 期刊论文

  • 发表日期：

    2025年8月31日

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

摘要

Abstract

The equations for pulsation moments arising in the simulation of turbulent flows are derived on the basis of a kinetic model previously successfully used to obtain a quasi-gas dynamic system of equations. The construction of a mathematical model is presented for a two-dimensional flow of a weakly compressible gas. At the same time, tuning parameters are not actually used to obtain a closed system describing the turbulent flow as a whole. Calculations of turbulent flows in a plane channel and a mixing layer are given as an example.