| Autor(es): |
Palharini, Rodrigo C.
;
Azevedo, Joao Luiz F.
;
White, Craig
Número total de Autores: 3
|
| Tipo de documento: | Artigo Científico |
| Fonte: | AIAA SCITECH 2019 FORUM; v. N/A, p. 19-pg., 2019-01-01. |
| Resumo | |
In the present investigation, the direct simulation Monte Carlo method is employed to simulate hypersonic rarefied gas flows over the Brazilian reentry satellite. The freestream conditions correspond to those experienced by the capsule at 70 and 65 km altitude. At this altitude and re-entry velocity of 7860 m/s, a high temperature shock is formed promoting dissociation and possibly ionisation of the air surrounding the vehicle. The chemical reactions are modelled using the Quantum Kinetic (QK) chemistry model and the results are compared with those obtained for non-reacting gas flows. It is found that the chemical reactions lead to a significant reduction of the shock wave temperature which, consequently, causes a decrease in the maximum pressure values and in the shock wave thickness. (AU) | |
| Processo FAPESP: | 14/25438-1 - Investigação numérica da aerotermodinâmica de veículos hipersônicos durante a reentrada atmosférica sob não equilíbrio químico |
| Beneficiário: | Rodrigo Cassineli Palharini |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |
| Processo FAPESP: | 13/07375-0 - CeMEAI - Centro de Ciências Matemáticas Aplicadas à Indústria |
| Beneficiário: | Francisco Louzada Neto |
| Modalidade de apoio: | Auxílio à Pesquisa - Centros de Pesquisa, Inovação e Difusão - CEPIDs |