Numerical modeling of the temperature field on the surface of a ballistic capsule returning from a near-lunar orbit

This paper presents the solution to a non-linear non-stationary heat transfer problem in a double-layer heat shield coating on a metal hemispherical shell with an axisymmetric distribution of the heat flow density over the outer coating surface. The coating’s outer layer material has thermal conduct...

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Bibliographic Details
Main Authors: Zarubin, V. S., Leonov, V. V.
Format: Conference Proceeding
Language:English
Subjects:
Anisotropy
Atmospheric entry
Coating
Heat transfer
Heat transmission
Hemispherical shells
Lunar orbits
Numerical models
Temperature distribution
Thermal conductivity
Thermodynamic properties
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Summary:This paper presents the solution to a non-linear non-stationary heat transfer problem in a double-layer heat shield coating on a metal hemispherical shell with an axisymmetric distribution of the heat flow density over the outer coating surface. The coating’s outer layer material has thermal conductivity anisotropy characterized by a ratio of the thermal conductivity coefficients along and across the layer. The resulting solution has been used to quantitatively assess the thermal behavior of such a coating on a ballistic capsule when it enters the dense layers of the Earth’s atmosphere with a velocity close to a parabolic one, with a single preliminary dipping into the atmosphere and entry into a near-earth orbit before the final stage of descent.
ISSN:0094-243X
1551-7616
DOI:10.1063/5.0163457