A computational study of leading-edge wall cooling effect on shock wave–boundary layer interaction in forward-facing step

IF 1 4区工程技术 Q3 ENGINEERING, AEROSPACE

Proceedings of the Institution of Mechanical Engineers Part G-Journal of Aerospace Engineering Pub Date : 2023-10-20 DOI:10.1177/09544100231206567

Vinoth Kumar P, Jayaprakash N Murugan

引用次数: 0

Abstract

A computational study has been done to understand the effect of leading-edge wall cooling on shock wave–boundary layer interaction. Shock wave–boundary layer interaction is studied over a forward-facing step at supersonic Mach 2.5. The study was carried out using Ansys. The work aims to explore the implementation of wall cooling at the leading edge as a separation control strategy for supersonic forward-facing step-induced flow separation. We use a finite-volume method based on upwind flux difference splitting and second-order upwind flow discretization. The simulation results are validated with the available experimental data. Furthermore, using numerical simulations, we found that the separation bubble size was reduced by 18.36% when the walls were marginally cooled to 150 K, while the separation was reduced by 32.65% when the walls were strongly cooled to 100 K.

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前缘壁面冷却对前台阶激波-边界层相互作用影响的计算研究

计算研究了前缘壁面冷却对激波-边界层相互作用的影响。研究了超音速2.5马赫条件下激波与边界层的前向台阶相互作用。本研究采用Ansys软件进行。本研究旨在探讨前缘壁面冷却作为超声速前向阶跃流动分离的分离控制策略。采用了基于逆风通量差分分裂和二阶逆风流动离散化的有限体积方法。仿真结果与已有的实验数据进行了验证。此外，通过数值模拟发现，当壁面略微冷却到150 K时，分离泡尺寸减小了18.36%，而当壁面强烈冷却到100 K时，分离泡尺寸减小了32.65%。

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

Proceedings of the Institution of Mechanical Engineers Part G-Journal of Aerospace Engineering 工程技术-工程：机械

CiteScore

2.40

自引率

18.20%

发文量

212

审稿时长

5.7 months

期刊介绍： The Journal of Aerospace Engineering is dedicated to the publication of high quality research in all branches of applied sciences and technology dealing with aircraft and spacecraft, and their support systems. "Our authorship is truly international and all efforts are made to ensure that each paper is presented in the best possible way and reaches a wide audience. "The Editorial Board is composed of recognized experts representing the technical communities of fifteen countries. The Board Members work in close cooperation with the editors, reviewers, and authors to achieve a consistent standard of well written and presented papers."Professor Rodrigo Martinez-Val, Universidad Politécnica de Madrid, Spain This journal is a member of the Committee on Publication Ethics (COPE).