Features of plasma flow around the descent module in the reentry phase with a protrusion on its lateral surface
Published: 24.01.2024
Authors: Tugaenko V.Yu., Gribkov A.S., Grankina E.N., Scherbenko N.V.
Published in issue: #1(145)/2024
DOI: 10.18698/2308-6033-2024-1-2328
Category: Mechanics | Chapter: Mechanics of Liquid, Gas, and Plasma
The paper analyzes features of plasma flow around a descent module (DM) in passage through the Earth’s atmosphere at the orbital speed, which are associated with a propulsion (pitch) unit installed on the leeward side of the lateral surface. Based on the nature of thermal alterations in the thermal protection materials of the lateral surface, the paper shows that part of the compressed layer is “flowing off” from the frontal thermal protection shield, is being reflected from the pitch unit frontal part and settles on the DM lateral surface. Processes influencing the deposit formation on the porthole positioned on the DM leeward side are assessed. A space experiment is presented on instrumental study of the emission spectrum of the gas-plasma-dust layer and its chemical composition during the DM descent.
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