THERMAL SCIENCE

International Scientific Journal

THE PHYSICAL ASPECTS OF GAS DYNAMIC AND THERMAL PHYSICS PROCESSES MATHEMATICAL MODELLING OF DESCENT SPACECRAFT'S

ABSTRACT
The article discusses the physical aspects and assumptions in the formulation of the gas dynamics and thermal physics models in conditions of "Luna - Resource" spacecraft landing on the Moon surface. It was proposed to divide the problem into two stages: calculation of the gas phase and determination of trajectories and heating of particles of lunar dust. The use of the continuum equations and not taking into account the reverse effect of particles on gas was substantiated. The calculation results of parameters impingement exhaust jet of spacecraft propulsion system with Moon surface are given. It was obtained that a reverse external force is added to the streamlined surfaces equal to 196 N, the gas temperature at the bottom of the cargo compartment reaches 2000 K, and the calculated heat flux was 400 kW. The trajectories of the particles of lunar dust was determined and it was found that with a size of 1 μm the distance of their flight range was 3.5 km.
KEYWORDS
PAPER SUBMITTED: 2018-10-31
PAPER REVISED: 2018-12-05
PAPER ACCEPTED: 2018-12-11
PUBLISHED ONLINE: 2019-05-05
DOI REFERENCE: https://doi.org/10.2298/TSCI19S2513V
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2019, VOLUME 23, ISSUE Supplement 2, PAGES [S513 - S518]
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© 2019 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence