| Journal: | Journal of the Brazilian Society of Mechanical Sciences and Engineering |
| Database: | PERIÓDICA |
| System number: | 000312320 |
| ISSN: | 1678-5878 |
| Authors: | Santos, Wilson F.N1 |
| Institutions: | 1Instituto Nacional de Pesquisas Espaciais, Laboratorio Associado de Combustao e Propulsao, Sao Jose dos Campos, Sao Paulo. Brasil |
| Year: | 2006 |
| Season: | Jul-Sep |
| Volumen: | 28 |
| Number: | 3 |
| Pages: | 362-372 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Experimental |
| English abstract | Hypersonic flow past truncated wedges at zero incidence in thermal non-equilibrium is investigated for a range of Mach number from 5 to 12. The simulations were performed by using a Direct Simulation Monte Carlo (DSMC) Method. The study focuses the attention of designers of hypersonic configurations on the fundamental parameter of bluntness, which can have an important impact on even initial design. Some significant differences between sharp and blunt leading edges were noted on the heat transfer, pressure and skin friction coefficients as well as on total drag. Interesting features observed in the surface fluxes showed that small leading edge thickness compared to the freestream mean free path still has important effects on high Mach number leading edge flows. The numerical results present reasonable comparison for wall pressure and heat transfer predictions with experiments conducted in a shock tunnel |
| Disciplines: | Ingeniería |
| Keyword: | Ingeniería de materiales, Ingeniería mecánica, Flujo hipersónico, Fricción, Transferencia de calor, Aerodinámica, Aeronáutica, Cuerpos obtusos, Bordes agudos |
| Keyword: | Engineering, Materials engineering, Mechanical engineering, Hypersonic flow, Blunt body, Friction, Leading edges, Aerodynamics, Aeronautics |
| Full text: | Texto completo (Ver PDF) |
