Utilize este identificador para referenciar este registo:
http://hdl.handle.net/10400.6/12207
Título: | Numerical study of cryogenic jets under supercritical conditions |
Autor: | Barata, Jorge M M Gokalp, Iskender Silva, André |
Palavras-chave: | Combustion Chambers Space Shuttle Main Engine Critical Temperature Velocity Profiles Conservation Equations Propellant Shear Layers Radial Velocity Axisymmetric Flow Aeronautics |
Data: | 22-Ago-2012 |
Editora: | American Institute of Aeronautics and Astronautics Inc |
Citação: | . J. M. M. Barata, A. R. R. Silva, I. Gokalp Numerical Simulation of Cryogenics Jets under Supercritical Conditions 40th AIAA Aerospace Sciences Meeting and Exhibit, Reno, Nevada, EUA, 14-17 janeiro, 2002 DOI: 10.2514/6.2002-916 |
Resumo: | The present work is devoted to the study of cryogenic nitrogen jets in sub- and supercritical conditions. A general trend to operate under an increasingly higher combustor pressures is observed in rockets, gas turbines, and diesel engines, primarily due to enhanced effects on thrust, power, or efficiency. In this conditions, the injected fluid(s) may experience ambient pressures exceeding the critical pressure(s) of the propellants, and recent experimental work of Chehroudi et al.1 showed a quantitative similarity to gas jet-like behavior This paper reports an investigation aimed to evaluate the capabilities of a computational method developed for incompressible but variable density flows when applied to supercritical conditions. The predicted initial jet growth rate was compared with available experimental data for liquid/gaseous jets and mixing layers, and showed a good agreement for different density ratios. |
Peer review: | yes |
URI: | http://hdl.handle.net/10400.6/12207 |
DOI: | 10.2514/6.2002-916 |
Versão do Editor: | https://arc.aiaa.org/doi/10.2514/6.2002-916 |
Aparece nas colecções: | FE - DCA | Documentos por Auto-Depósito ICI - AeroG-LAETA | Documentos por Auto-Depósito |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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10.4.1.1..pdf | 785,85 kB | Adobe PDF | Ver/Abrir Acesso Restrito. Solicitar cópia ao autor! |
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