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Titolo:
Drags in scramjet engine testing: Experimental and computational fluid dynamics studies
Autore:
Mitani, T; Kanda, T; Hiraiwa, T; Igarashi, Y; Nakahashi, K;
Indirizzi:
Natl Aerosp Lab, Miyagi 9811525, Japan Natl Aerosp Lab Miyagi Japan 9811525 l Aerosp Lab, Miyagi 9811525, Japan Tohoku Univ, Dept Aeronaut & Space Engn, Sendai, Miyagi 9800845, Japan Tohoku Univ Sendai Miyagi Japan 9800845 gn, Sendai, Miyagi 9800845, Japan
Titolo Testata:
JOURNAL OF PROPULSION AND POWER
fascicolo: 4, volume: 15, anno: 1999,
pagine: 578 - 583
SICI:
0748-4658(199907/08)15:4<578:DISETE>2.0.ZU;2-R
Fonte:
ISI
Lingua:
ENG
Soggetto:
FLOW;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
22
Recensione:
Indirizzi per estratti:
Citazione:
T. Mitani et al., "Drags in scramjet engine testing: Experimental and computational fluid dynamics studies", J PROPUL P, 15(4), 1999, pp. 578-583

Abstract

No-fuel internal drag of a side-compression scramjet engine was evaluated by using two one-fifth-subscaled models, one for wall pressure measurement and the other for force measurement under conditions of a Eight Mach numberof 4. The pressure and frictional drags in various parts of the models were estimated from these wind tunnel tests. Comparison between the pressure measurement and the force measurement revealed that the drag derived by these wind-tunnel tests agreed within 5%. After examining the consistency between the pressure and the force experiments, these results were used to calibrate a newly developed computational fluid dynamics code. The frictional drag and the heating rate on the engine internal walls were evaluated with the unstructured grid code to be compared with those obtained from the one-fifth-subscale model and the full scale engine. The total drag coefficient ofthe scramjet engine, including the installation drag, was found to be 0.281 and the internal drag coefficient was found to be 0.093. Consequently, two thirds of the total drag measured in engine testing In the Ramjet Engine Test Facility was produced by the external flow over the engine module, Subtracting the external drag, the internal performance delivered by the H-2-fueled scramjet engine is discussed.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/09/20 alle ore 11:45:58