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Abstract <p>A study of the flow of rarefied fluid in a channel at a relatively low Reynolds number and verification of the calculation of hydraulic losses in it were carried out. The study was conducted using a numerical model verified by an empirical model. The object of study is a flow in a channel with known local hydraulic resistance. When formulating the problem, various boundary conditions corresponding to different altitudes in the atmosphere were considered. Based on the results of the study, an adequate numerical model is described.</p>

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Determining the Applicability Limits of the SST Turbulence Model for Modeling Flows in Small Gas Turbine Engine Ducts at Low Local Reynolds Numbers

  • 期刊论文

  • 发表日期：

    2025年9月1日

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  • L. O. Vokin,
  • M. E. Renev,
  • I. A. Volobuev

摘要

Abstract

A study of the flow of rarefied fluid in a channel at a relatively low Reynolds number and verification of the calculation of hydraulic losses in it were carried out. The study was conducted using a numerical model verified by an empirical model. The object of study is a flow in a channel with known local hydraulic resistance. When formulating the problem, various boundary conditions corresponding to different altitudes in the atmosphere were considered. Based on the results of the study, an adequate numerical model is described.