Aerothermodynamics of Satellite During Atmospheric Reentry for the Whole Range of Gas Rarefaction: Influence of Inelastic Intermolecular Collisions



Título del documento: Aerothermodynamics of Satellite During Atmospheric Reentry for the Whole Range of Gas Rarefaction: Influence of Inelastic Intermolecular Collisions
Revista: Brazilian journal of physics
Base de datos: PERIÓDICA
Número de sistema: 000397444
ISSN: 0103-9733
Autores: 1
2
Instituciones: 1Pontificia Universidade Catolica do Parana, Departamento de Engenharia de Computacao, Curitiba, Parana. Brasil
2Universidade Federal do Parana, Departamento de Fisica, Curitiba, Parana. Brasil
Año:
Periodo: Ago
Volumen: 42
Número: 3-4
Paginación: 192-206
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Analítico
Resumen en inglés The aerothermodynamic characteristics of the Brazilian satellite Satélite de Reentrada Atmosférica were calculated for orbital-flight and atmosphericreentry conditions with the direct simulation Monte Carlo method for a diatomic gas. The internal modes of molecule energy in the intermolecular interaction, such as the rotational energy, were taken into account. The numerical calculations cover a range of gas rarefactions wide enough to embrace the free-molecule and hydrodynamic regimes. Two Mach numbers were considered: 10 and 20. Numerical results include the drag force of the satellite, the energy flux, pressure coefficient, and skin friction coefficient over the satellite surface, the density and temperature distributions, and streamlines of the gas flow around the satellite. The influence of the satellite temperature upon these characteristics was evaluated at different satellite temperatures
Disciplinas: Física y astronomía
Palabras clave: Física,
Astronáutica,
Satélites,
Orbitas,
Reentrada atmosférica,
Moléculas diatómicas,
Gases
Keyword: Physics and astronomy,
Physics,
Astronautics,
Satellites,
Orbits,
Atmospheric entry,
Diatomic molecules,
Gases
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