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Turbulent mixing in a pulsed plasma-jet exhaust

Published online by Cambridge University Press:  20 April 2006

D. R. Topham ,
R. M. Clements  and
P. R. Smy
D. R. Topham
Affiliation:
Institute of Ocean Sciences, P.O. Box 6000, Sidney, British Columbia, Canada V8L 4B2
R. M. Clements
Affiliation:
Department of Physics, University of Victoria, British Columbia, Canada V8W 2Y2
P. R. Smy
Affiliation:
Department of Electrical Engineering, University of Alberta, Edmonton, Alberta, Canada T6G 2G7
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Abstract

High-speed schlieren cinéphotography of the firing of a high-energy plasma-jet igniter reveal turbulent structures similar in appearance to laboratory models of thermals or turbulent puffs. Measurements of the growth rates of these features together with those of their impulse and thermal energy confirm this similarity. A simple model based on the entrainment assumption gives a good description of the motion of the element and also of the decay of the internal temperature.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 148 , November 1984 , pp. 207 - 224
Copyright
© 1984 Cambridge University Press

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