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

M. L. Billet, D. S. Weir

doi:10.1115/1.3448090

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

DOI PDF 被引用文献1件

M. L. Billet

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

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

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<jats:p>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.</jats:p>