Numerical study of viscous effects on the formation of the Mach reflection in a transition from regular reflection

IF 1.7 4区工程技术 Q3 MECHANICS

Shock Waves Pub Date : 2025-01-24 DOI:10.1007/s00193-024-01213-1

G. Shoev, V. Nazarov, M. Timokhin

引用次数: 0

Abstract

The influence of viscosity on the formation of the Mach reflection of shock waves in a steady argon flow between two symmetrically arranged wedges is numerically studied at the free-stream Mach number of 2 and the Reynolds number of 1000. A two-shock configuration is shown to form at the wedge angle \(\theta _\text {w}=10.9^\circ \) rather than a three-shock configuration predicted by shock polars. The Mach reflection appears as the wedge angle increases, i.e., viscosity leads to a delay of the transition from regular to Mach reflection.

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对从常规反射过渡到马赫反射过程中形成的粘性效应的数值研究

在自由马赫数为2、雷诺数为1000的条件下，数值研究了粘度对两个对称排列的楔形间稳定氩气流动中激波马赫数反射形成的影响。双激波结构显示在楔角\(\theta _\text {w}=10.9^\circ \)处形成，而不是激波极性预测的三激波结构。马赫数反射随着楔角的增大而出现，即黏度导致从规则反射过渡到马赫数反射的延迟。

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

Shock Waves 物理-力学

CiteScore

4.10

自引率

9.10%

发文量

审稿时长

17.4 months

期刊介绍： Shock Waves provides a forum for presenting and discussing new results in all fields where shock and detonation phenomena play a role. The journal addresses physicists, engineers and applied mathematicians working on theoretical, experimental or numerical issues, including diagnostics and flow visualization. The research fields considered include, but are not limited to, aero- and gas dynamics, acoustics, physical chemistry, condensed matter and plasmas, with applications encompassing materials sciences, space sciences, geosciences, life sciences and medicine. Of particular interest are contributions which provide insights into fundamental aspects of the techniques that are relevant to more than one specific research community. The journal publishes scholarly research papers, invited review articles and short notes, as well as comments on papers already published in this journal. Occasionally concise meeting reports of interest to the Shock Waves community are published.