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Aerospace 2015, 2(1), 1-16; doi:10.3390/aerospace2010001

Shock Wave Diffraction Phenomena around Slotted Splitters

School of Engineering, University of Glasgow, Glasgow G12 8QQ, UK
This paper is an extended version of our paper published in ISIS 21, Riga, Latvia.
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Author to whom correspondence should be addressed.
Academic Editor: Rafic Ajaj
Received: 14 November 2014 / Accepted: 17 December 2014 / Published: 5 January 2015
(This article belongs to the Special Issue Recent Advances in SWBLI Research)
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Abstract

In the field of aerospace engineering, the study of the characteristics of vortical flows and their unsteady phenomena finds numerous engineering applications related to improvements in the design of tip devices, enhancement of combustor performance, and control of noise generation. A large amount of work has been carried out in the analysis of the shock wave diffraction around conventional geometries such as sharp and rounded corners, but the employment of splitters with lateral variation has hardly attracted the attention of researchers. The investigation of this phenomenon around two-dimensional wedges has allowed the understanding of the basic physical principles of the flow features. On the other hand, important aspects that appear in the third dimension due to the turbulent nature of the vortices are omitted. The lack of studies that use three-dimensional geometries has motivated the current work to experimentally investigate the evolution of the shock wave diffraction around two splitters with spike-shaped structures for Mach numbers of 1.31 and 1.59. Schlieren photography was used to obtain an insight into the sequential diffraction processes that take place in different planes. Interacting among them, these phenomena generate a complicated turbulent cloud with a vortical arrangement. View Full-Text
Keywords: shock wave diffraction; co-flow; Karman vortex street shock wave diffraction; co-flow; Karman vortex street
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Gnani, F.; Lo, K.H.; Zare-Behtash, H.; Kontis, K. Shock Wave Diffraction Phenomena around Slotted Splitters. Aerospace 2015, 2, 1-16.

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