| Revista: | Revista mexicana de física |
| Base de datos: | |
| Número de sistema: | 000592443 |
| ISSN: | 0035-001X |
| Autores: | Nedjari, M.1 Benarous, A.2 Benazza, A.1 |
| Instituciones: | 1Université Djillali Liabes, Laboratory of Materials and Reactive Systems, Sidi Bel Abbes. Argelia 2Université Saad Dahlab de Blida, Technology faculty, Blida, Blida. Argelia |
| Año: | 2023 |
| Periodo: | Ene-Feb |
| Volumen: | 69 |
| Número: | 1 |
| País: | México |
| Idioma: | Inglés |
| Resumen en inglés | The purpose of this work is to perform a CFD study of the free shock separation (FSS) in an overexpanded nozzle. The original contraction profile of the nozzle was numerically replaced by a set of curves, where the overall length was identical with the test-rig. For the baseline case, the static pressure and the separation location exhibited a good agreement with the experimental measurements, provided by the DLR. The Error-function contraction profile has revealed a relative displacement of 1.38% on the separation location in the core flow direction. In this case, there was an increase in the thrust coefficient, that has been improved up to 1.7% in comparison with the baseline nozzle design. |
| Keyword: | Overexpanded nozzle, Contraction profile, Shock separation, Thrust coefficient, Computational fluid dynamics (CFD) |
| Texto completo: | Texto completo (Ver PDF) Texto completo (Ver HTML) |
