Swanson, W. M. and O'Neill, J. P. (1951) The stability of an air-maintained cavity behind a stationary object in flowing water. California Institute of Technology , Pasadena, CA. http://resolver.caltech.edu/CaltechAUTHORS:HydroLabRptM-24.3
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In studies made in the Free Surface Water Tunnel of a projectile running in an air-maintained cavity, the experimental relation between air entrainment rate and cavitation number was determined. The entrainment-rate coefficient CQ = Q/V0d^2, where Q is the air rate in cfs, V0 the free-stream velocity, and d the disk nose diameter, was plotted against cavitation parameter, K = (p0 - pk)/q0 where p0 is the free-stream pressure at the disk center line, pk the cavity pressure, and q0 the free-stream dynamic pressure. This experimental relationship for one single disc is shown for three different velocities in Fig. 1. The curves are similar in shape and each has a minimum value of entrainment coefficient which is designated by CQ^* at a value of K as designated as K^*.
|Item Type:||Report or Paper (Technical Report)|
|Additional Information:||Navy Department, Office of Naval Research, Fluid Mechanics Branch, Contract N6onr-24424. Hydrodynamics Laboratory, California Institute of Technology, Memorandum Report No. M-24.3, 5 September 1951. J.P. O'Neill, Project Supervisor.|
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|Deposited On:||07 Dec 2007|
|Last Modified:||26 Dec 2012 09:47|
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