Experimental investigation on upstream-injection interaction with a scramjet cavity flameholder

Autor:	Shun-Ping Zhang, Jianhan Liang, Mingbo Sun, YuXin Zhao, Yanhui Zhao
Rok vydání:	2014
Předmět:	Jet (fluid) Multidisciplinary Materials science Meteorology Turbulence Mechanics complex mixtures Physics::Fluid Dynamics Particle image velocimetry Scramjet Supersonic speed Upstream (networking) Stagnation pressure Choked flow
Zdroj:	Chinese Science Bulletin. 59:1568-1574
ISSN:	1861-9541 1001-6538
DOI:	10.1007/s11434-014-0148-2
Popis:	The study has evaluated the coherent structures and the velocity field of gaseous transverse jet upstream of a scramjet flameholder in a supersonic turbulent flow. The high spatiotemporal resolution coherent structures of the jet plume/wakes and the cavity shear layer were obtained by utilizing the nanoparticle-based planar laser scattering technique. Compared to the no upstream injection case, the cavity shear layer downstream of the jet shows significant mass exchange with mainstream. The particle image velocimetry velocity field and the velocity profiles demonstrated that the interaction intensity of the cavity shear layer with the upstream injection is further enhanced as the injection stagnation pressure increases.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f49926a27ae5a0da625e3bba502b2a5f https://doi.org/10.1007/s11434-014-0148-2 Zobrazit plný text záznamu Full text from SpringerLink