Penetration characteristics of air, carbon dioxide and helium transverse sonic jets in Mach 5 cross flow

Erdem, E., Kontis, K. and Saravanan, S. (2014) Penetration characteristics of air, carbon dioxide and helium transverse sonic jets in Mach 5 cross flow. Sensors, 14(12), pp. 23462-23489. (doi:10.3390/s141223462)

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Publisher's URL: http://dx.doi.org/10.3390/s141223462

Abstract

An experimental investigation of sonic air, CO2 and Helium transverse jets in Mach 5 cross flow was carried out over a flat plate. The jet to freestream momentum flux ratio, J, was kept the same for all gases. The unsteady flow topology was examined using high speed schlieren visualisation and PIV. Schlieren visualisation provided information regarding oscillating jet shear layer structures and bow shock, Mach disc and barrel shocks. Two-component PIV measurements at the centreline, provided information regarding jet penetration trajectories. Barrel shocks and Mach disc forming the jet boundary were visualised/quantified also jet penetration boundaries were determined. Even though J is kept the same for all gases, the penetration patterns were found to be remarkably different both at the nearfield and the farfield. Air and CO2 jet resulted similar nearfield and farfield penetration pattern whereas Helium jet spread minimal in the nearfield.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Kontis, Professor Konstantinos and Erdem, Dr Erinc
Authors: Erdem, E., Kontis, K., and Saravanan, S.
College/School:College of Science and Engineering > School of Engineering
College of Science and Engineering > School of Engineering > Aerospace Sciences
Journal Name:Sensors
Publisher:MDPI
ISSN:1424-8239
ISSN (Online):1424-8220
Copyright Holders:Copyright © 2014 The Authors
First Published:First published in Sensors 14(12):23462-23489
Publisher Policy:Reproduced under a Creative Commons License

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