Shock wave induced vortex loops emanating from nozzles with singular corners

Zare-Behtash, H. , Kontis, K., Gongora-Orozco, N. and Takayama, K. (2010) Shock wave induced vortex loops emanating from nozzles with singular corners. Experiments in Fluids, 49(5), pp. 1005-1019. (doi:10.1007/s00348-010-0839-7)

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Abstract

The focus of the current study is to examine experimentally the diffracted shock wave pattern and the consequent vortex loop formation, propagation, and decay from nozzles having singular corners. Non-intrusive qualitative and quantitative techniques: schlieren, shadowgraphy, and particle image velocimetry (PIV) are employed to analyze the induced flow-fields. Eye-shaped nozzles were used with the corner joints representing singularities. The length of the minor axes are a = 6 and 15 mm, with the major axis b = 30 mm for both cases. The experiments are performed for flow Reynolds numbers in the range 0.8 × 105 and 4.6 × 105. Air is used in both driver and driven sections of the shock tube.

Item Type:Articles (Editorial)
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Zare-Behtash, Dr Hossein
Authors: Zare-Behtash, H., Kontis, K., Gongora-Orozco, N., and Takayama, K.
College/School:College of Science and Engineering > School of Engineering > Aerospace Sciences
Journal Name:Experiments in Fluids
Publisher:Springer Verlag
ISSN:0723-4864
ISSN (Online):1432-1114
Copyright Holders:Copyright © 2010 Springer Verlag
First Published:First published in Experiments in Fluids 49(5):1005-1019
Publisher Policy:Reproduced in accordance with the copyright policy of the publisher

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