High-speed imaging of dynamic shock wave reflection phenomena

K. Naidoo; B. W. Skews

doi:10.1117/12.821850

10 February 2009 High-speed imaging of dynamic shock wave reflection phenomena

K. Naidoo, B. W. Skews

Proceedings Volume 7126, 28th International Congress on High-Speed Imaging and Photonics; 71260E (2009) https://doi.org/10.1117/12.821850
Event: 28th International Congress on High-Speed Imaging and Photonics, 2008, Canberra, Australia

Abstract

Dynamic shock wave reflection generated by a rapidly pitching wedge in a steady supersonic free stream have been studied with numerical simulation previously. This paper publishes the development and design of an experimental facility to characterize these dynamic shock wave reflection phenomena. The paper documents details of the experimental rig, flow visualization technique and the high-speed imaging system. High-speed schlieren images from tests with gradual, but dynamic wedge pitch are included. Flow field images are captured with a Photron Ultima APX-RS high-speed camera at 250 fps. Tests were conducted at Mach 1.9 and Mach 3.0 free stream conditions in a supersonic wind tunnel. The high-speed imaging enabled the accurate determination of the point of transition between regular and Mach reflection. The wedge incidence for which the shock system is swallowed and disgorged was also measured during these tests.

Citation Download Citation

K. Naidoo and B. W. Skews "High-speed imaging of dynamic shock wave reflection phenomena", Proc. SPIE 7126, 28th International Congress on High-Speed Imaging and Photonics, 71260E (10 February 2009); https://doi.org/10.1117/12.821850

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