Experiments on oblique shock interactions with planar mixing regions

Buttsworth, D. R. and Morgan, R. G. and Jones, Terry V. (1997) Experiments on oblique shock interactions with planar mixing regions. AIAA Journal, 35 (11). pp. 1774-1777. ISSN 0001-1452

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Abstract

Experimental studies using supersonic mixing configurations
have revealed varying degrees of shock-induced mixing
augmentation. Increases in turbulent activity through shock
impingement have been observed; however, it appears that such changes in turbulent activity do not necessarily translate into sustained mixing augmentation downstream. Theoretical and experimental studies indicate that mixing augmentation can be sustained by the interaction of an oblique shock wave with a discrete fuel jet, which induces significant streamwise vorticity. However, in a numerical study of shock-induced mixing augmentation of square fuel jets, it was found that the major contribution to the mixing
augmentation was actually from the vorticity amplification associated with the shock-induced convergence of the jet rather than the induced streamwise vorticity. To investigate the influence of shock compression on the development of the postshock mixing region, an inviscid analysis describing the steady interaction of an oblique shock wave and a planar mixing region was developed. This model can be used to estimate parameters such as the shock trajectory, the strength of waves reflected from the interaction process, and the postshock vorticity. The present work examines the application of the inviscid interaction model in a hypersonic configuration and focuses on the details of the shock wave–mixing region interaction process.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Publisher does not formally support archiving. Published version made not accessible.
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - Department of Mechanical and Mechatronic Engineering
Date Deposited: 30 Nov 2007 11:47
Last Modified: 27 Aug 2013 05:28
Uncontrolled Keywords: turbulent activity; hypersonics; fuel jets; vorticity; shock waves
Fields of Research : 09 Engineering > 0901 Aerospace Engineering > 090106 Flight Dynamics
09 Engineering > 0915 Interdisciplinary Engineering > 091501 Computational Fluid Dynamics
09 Engineering > 0901 Aerospace Engineering > 090107 Hypersonic Propulsion and Hypersonic Aerodynamics
Socio-Economic Objective: E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering
Identification Number or DOI: 10.2514/2.26
URI: http://eprints.usq.edu.au/id/eprint/13605

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