Numerical Study of the Turbulent Boundary Layer with an Adverse Pressure Gradient in Compressible Gas Flow

IF 1 4区工程技术 Q4 MECHANICS

Fluid Dynamics Pub Date : 2025-05-08 DOI:10.1134/S0015462824604583

V. G. Lushchik, S. S. Popovich

引用次数: 0

Abstract

The turbulent boundary layer in supersonic flow with an adverse pressure gradient is numerically simulated using the three-parameter differential RANS turbulence model. The adverse pressure gradient is implemented by reducing the Mach number along the plate. The simulation is carried out for a number of values of the free-stream Mach number from 1.5 to 3.0 and the temperature factor equal to and different from unity. The results of calculating the integral and local flow characteristics testify that there is a significant effect of the adverse pressure gradient on the flow and heat transfer characteristics.

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可压缩气体流动中具有逆压梯度的湍流边界层数值研究

采用三参数差分RANS湍流模型对具有逆压梯度的超声速流动湍流边界层进行了数值模拟。逆压梯度是通过减小沿板的马赫数来实现的。对自由流马赫数在1.5 ~ 3.0范围内的若干数值以及温度因子等于和不同于单位的数值进行了仿真。整体流动特性和局部流动特性的计算结果表明，逆压梯度对流动特性和换热特性有显著影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Fluid Dynamics MECHANICS-PHYSICS, FLUIDS & PLASMAS

CiteScore

1.30

自引率

22.20%

发文量

审稿时长

6-12 weeks

期刊介绍： Fluid Dynamics is an international peer reviewed journal that publishes theoretical, computational, and experimental research on aeromechanics, hydrodynamics, plasma dynamics, underground hydrodynamics, and biomechanics of continuous media. Special attention is given to new trends developing at the leading edge of science, such as theory and application of multi-phase flows, chemically reactive flows, liquid and gas flows in electromagnetic fields, new hydrodynamical methods of increasing oil output, new approaches to the description of turbulent flows, etc.