FLUIDIC CONTROL OF FLOW REGIME TRANSITION AND RETRANSITION IN A DUAL-BELL LAUNCHER NOZZLE
| Autor: | Legros, Brian, Léger, Luc, Kourta, Azeddine, Sefir, Abderrahmane, Sellam, Mohamed, Chpoun, Amer |
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| Přispěvatelé: | Institut de Combustion, Aérothermique, Réactivité et Environnement (ICARE), Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut des Sciences de l'Ingénierie et des Systèmes (INSIS - CNRS), Laboratoire pluridisciplinaire de recherche en ingénierie des systèmes, mécanique et énergétique (PRISME), Université d'Orléans (UO)-Institut National des Sciences Appliquées - Centre Val de Loire (INSA CVL), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA), Laboratoire de Mécanique et d'Energétique d'Evry (LMEE), Université d'Évry-Val-d'Essonne (UEVE)-Université Paris-Saclay, 3AF, ANR-11-LABX-0006,CAPRYSSES,Cinétique chimique et Aérothermodynamique pour des Propulsions et des Systèmes Energétiques Propres(2011) |
| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | 8TH EDITION OF THE 3AF SPACE PROPULSION CONFERENCE 8TH EDITION OF THE 3AF SPACE PROPULSION CONFERENCE, 3AF, May 2022, Estoril, Portugal |
| Popis: | International audience; Dual-bell nozzle (DBN) is a rocket nozzle concept that could provide substantial payload gain worth tens of millions of dollars. The control of transition, the reduction of side-loads, and the analysis of its stability have been the subject of numerous studies. The present paper focuses on the impact of radial secondary injection on DBN behaviour during its ascent and descent in the atmosphere. In the present study, the use of secondary injection allowed the transition nozzle pressure ratio to be increased by nearly 24% compared to a nozzle without any injection slot (smooth nozzle), and the lateral forces were reduced to less than 1% of the nozzle thrust. Finally, the jump in thrust during retransition was not found to be dependent on the secondary injection pressure, but was still reduced by over 61% compared to the smooth nozzle case. |
| Databáze: | OpenAIRE |
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