| Journal: | Journal of the Brazilian Society of Mechanical Sciences |
| Database: | PERIÓDICA |
| System number: | 000312116 |
| ISSN: | 0100-7386 |
| Authors: | Morgenstern-Junior, A1 |
| Institutions: | 1Instituto de Aeronautica e Espaco, Centro Tecnico Aeroespacial, Sao Jose dos Campos, Sao Paulo. Brasil |
| Year: | 2002 |
| Season: | Nov |
| Volumen: | 24 |
| Number: | 4 |
| Pages: | 271-277 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Experimental |
| English abstract | The unsteady, viscous, supersonic flow over a spike-nosed body of revolution is numerically investigated by solving the Navier-Stokes equations. The time-accurate computations are performed employing an implicit algorithm based on the second-order time-accurate LU-SGS scheme with the incorporation of a subiteration procedure to maintain time accuracy. The characteristics of the flow field for a Mach number of 3.0, Reynolds number of 7.87 x 10(6)/m, and angles of attack of 5 and 10 degrees are described. Self-sustained asymmetric shock wave oscillations were observed in the numerical computations for these angles of attack. The main characteristic of the flow field, as well as its influence on drag coefficient is discussed |
| Disciplines: | Física y astronomía, Matemáticas |
| Keyword: | Dinámica de fluidos, Matemáticas aplicadas, Flujo no estacionario, Flujos supersónicos, Tiempo, Precisión, Métodos, Subiteraciones |
| Keyword: | Physics and astronomy, Mathematics, Fluid dynamics, Applied mathematics, Unsteady flow, Supersonic flows, Time, Accuracy, Methods, Subiterations |
| Full text: | Texto completo (Ver HTML) |
