Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Effects of transverse helium injection on hypersonic boundary layers
Autore:
Auvity, B; Etz, MR; Smits, AJ;
Indirizzi:
Princeton Univ, Dept Mech & Aerosp Engn, Princeton, NJ 08544 USA PrincetonUniv Princeton NJ USA 08544 erosp Engn, Princeton, NJ 08544 USA
Titolo Testata:
PHYSICS OF FLUIDS
fascicolo: 10, volume: 13, anno: 2001,
pagine: 3025 - 3032
SICI:
1070-6631(200110)13:10<3025:EOTHIO>2.0.ZU;2-S
Fonte:
ISI
Lingua:
ENG
Soggetto:
CONCAVE SURFACE; VISUALIZATION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
11
Recensione:
Indirizzi per estratti:
Indirizzo: Auvity, B Princeton Univ, Dept Mech & Aerosp Engn, Princeton, NJ 08544 USAPrinceton Univ Princeton NJ USA 08544 , Princeton, NJ 08544 USA
Citazione:
B. Auvity et al., "Effects of transverse helium injection on hypersonic boundary layers", PHYS FLUIDS, 13(10), 2001, pp. 3025-3032

Abstract

Results are presented on the control of a zero-pressure gradient Mach 8 boundary layer using low-momentum helium injection through a transverse slot. The boundary layer structure was visualized in three orthogonal planes using planar filtered Rayleigh scattering. Sequential images of the boundary layer were obtained using a new MHz imaging system and employed to constructthree-dimensional representations of the instantaneous boundary layer behavior. The results indicate that low levels of helium injection into transitional and turbulent boundary layers can have a substantial effect on the boundary layer structure. Longitudinal structures develop downstream of the slot and persist for long times. They appear to be streamwise. vortices, andit is speculated that they are formed near the injection slot due to localstreamline concave curvature. The results may be important for aero-optic applications. (C) 2001 American. Institute of Physics.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/01/20 alle ore 15:50:12