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RESEARCH PAPERS

The Effect of Gas Diffusion on the Flow Coefficient for a Ventilated Cavity

[+] Author and Article Information
M. L. Billet, D. S. Weir

Garfield Thomas Water Tunnel, Applied Research Lab., State College, Pa.

J. Fluids Eng 97(4), 501-505 (Dec 01, 1975) (5 pages) doi:10.1115/1.3448090 History: Received February 10, 1975; Online October 12, 2010

Abstract

The results of an experimental investigation into the effect of gas diffusion on the volume flow-rate of gas needed to sustain a ventilated cavity are presented. Gas diffusion was found to have a significant effect on the ventilated flow rate required to sustain a cavity of a given size. An analysis for the gas diffusion effect was conducted based on a mathematical model of diffusion proposed by Brennen. The results compare favorably with experimental data. Also, an empirical scaling relationship is proposed for ventilated cavity flows.

Copyright © 1975 by ASME
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