Numerical simulation of the flow over a body flying through a thermal in a stratified atmosphere

I. F. Muzafarov, G. A. Tirskii, S. V. Utyuzhnikov, N. K. Yamaleev

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

The three-dimensional supersonic viscous flow over a blunted body flying horizontally through a cloud of hot gas (a thermal) is studied numerically. It is assumed that the cloud was formed as the result of a powerful explosion in the Earth's atmosphere. Consideration is given to the late stage of the explosion, corresponding to the vortex ring formation time. A complete problem is unstable. However, the air flow near the body at every point of the flight trajectory can be considered as a quasi-stationary flow, in view of the fact that the ratio of the characteristic time scale in the shock layer to the thermal characteristic time scale is 10-5. The aerodynamic and heat transfer characteristics of the flying body are studied.

Original languageEnglish
Pages (from-to)295-304
Number of pages10
JournalComputers and Fluids
Volume23
Issue number2
DOIs
Publication statusPublished - Feb 1994
Externally publishedYes

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