Various Continuum Approaches for Studying Shock Wave Structure in Carbon Dioxide

被引：11

作者：

Alekseev, I. V. ^{[1
]}

Kosareva, A. A. ^{[1
]}

Kustova, E. V. ^{[1
]}

Nagnibeda, E. A. ^{[1
]}

机构：

[1] St Petersburg State Univ, 7-9 Univ Skaya Nab, St Petersburg 199034, Russia

来源：

EIGHTH POLYAKHOV'S READING | 2018年 / 1959卷

基金：

俄罗斯基础研究基金会;

关键词：

D O I：

10.1063/1.5034662

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

Shock wave structure in carbon dioxide is studied using different continuum models within the framework of one temperature thermal equilibrium flow description. Navier-Stokes and Euler equations as well as commonly used Rankine-Hugoniot equations with different specific heat ratios are used to find the gas-dynamic parameters behind the shock wave, The accuracy of the Rankine-Hugoniot relations in polyatomic gases is assessed, and it is shown that they give a considerable error in the predicted values of fluid-dynamic variables. The effect of hulk viscosity on the shock wave structure in CO, is evaluated. Taking into account bulk viscosity yields a significant increase in the shock wave width; for the complete model, the shock wave thickness varies non-monotonically with the Mach number.

引用

页数：8

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