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Pisma v Zhurnal Tekhnicheskoi Fiziki, 2021 Volume 47, Issue 16, Pages 28–31 (Mi pjtf4707)

The influence of local heating of incident flow on level of sonic boom from thin body in wind shadow behind a disk

A. V. Potapkin, D. Yu. Moskvichev

Khristianovich Institute of Theoretical and Applied Mechanics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk

Abstract: Calculations are performed for a sonic boom generated by two bodies (a disk and a thin body of revolution) in the case of local heating of the incident air flow. The bodies are in a heat trail behind the heating region. The thin body is in an aerodynamic shadow behind the disk. The Mach number of the cold air flow is 2. The calculations are carried out using the combined method of “phantom bodies”. It is concluded on the basis of the calculations that the level of a sonic boom can be effectively suppressed by simultaneously using the heating of the incident flow and the aerodynamic shadow behind the disk.

Keywords: shock waves, sonic boom, thin body, aerodynamic shadow, flow heating, method of “phantom bodies”.

Received: 26.03.2021
Revised: 03.05.2021
Accepted: 11.05.2021

DOI: 10.21883/PJTF.2021.16.51325.18789


 English version:
Technical Physics Letters, 2021, 47:11, 810–813

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© Steklov Math. Inst. of RAS, 2024