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Aerodynamics of slot-film cooling: theory and experiment

Published online by Cambridge University Press:  20 April 2006

A. D. Fitt ,
J. R. Ockendon  and
T. V. Jones
A. D. Fitt
Affiliation:
Department of Engineering Science, Parks Road, Oxford Present address: Department of Maths and Ballistics, Royal Military College of Science, Shrivenham, Wilts.
J. R. Ockendon
Affiliation:
Mathematical Institute, 24–29 St Giles, Oxford
T. V. Jones
Affiliation:
Department of Engineering Science, Parks Road, Oxford
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Abstract

A simple model is proposed for the two-dimensional injection of irrotational inviscid fluid from a slot into a free stream. In a certain range of values of the ratio of free-stream to injection total heads, the film thickness satisfies a nonlinear integral equation whose solution enables the mass flow in the film to be found. Some experiments are described which both agree with this theory when it is relevant and indicate its deficiencies at other values of the total head ratio.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 160 , November 1985 , pp. 15 - 27
Copyright
© 1985 Cambridge University Press

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