低膨胀超音速射流初始区域的冲击波单元建模

IF 0.5 4区工程技术 Q4 ENGINEERING, AEROSPACE Thermophysics and Aeromechanics Pub Date : 2024-10-17 DOI:10.1134/S0869864324020094

I. A. Shirokov, T. G. Elizarova

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引用次数: 0

摘要

基于 QGD 算法进行了超音速低膨胀空气射流建模。研究了喷流演变过程和非稳态流区的形成，使结果与文献中已知的实验和模拟数据在定性和定量方面达到了良好的一致。研究表明，QGD 算法能够研究流动初始区域的冲击波单元结构，并描述湍流射流的一般特征。

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Modeling shock-wave cells at the initial region of the underexpanded supersonic jet

Supersonic underexpanded air jet modeling based on the QGD algorithm is carried out. The process of jet flow evolution and the formation of unsteady flow regions are investigated to obtain a good qualitative and quantitative agreement of the results with experimental and simulation data, known from the literature. The QGD algorithm is shown to enable studies of the structure of shock-wave cells at the initial region of the flow and to describe the general character of the turbulent jet.

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来源期刊

Thermophysics and Aeromechanics THERMODYNAMICS-MECHANICS

CiteScore

0.90

自引率

40.00%

发文量

审稿时长

>12 weeks

期刊介绍： The journal Thermophysics and Aeromechanics publishes original reports, reviews, and discussions on the following topics: hydrogasdynamics, heat and mass transfer, turbulence, means and methods of aero- and thermophysical experiment, physics of low-temperature plasma, and physical and technical problems of energetics. These topics are the prior fields of investigation at the Institute of Thermophysics and the Institute of Theoretical and Applied Mechanics of the Siberian Branch of the Russian Academy of Sciences (SB RAS), which are the founders of the journal along with SB RAS. This publication promotes an exchange of information between the researchers of Russia and the international scientific community.