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A note on the unsteady cavity flow in a tunnelThe unsteady internal cavitating flow such as the one observed in a pump or a turbine is studied for a simple two-dimensional model of a base-cavitating wedge in an infinite tunnel and it is shown how the cavitation compliance can be calculated using the linearized free streamline theory. Numerical values are obtained for the limiting case of a free jet. Two important features are: First, the cavitation compliance is found to be of complex form, having additional resistive and reactive terms beyond the purely inertial oscillation of the whole channel in 'slug flow.' Second, the compliance has a strong dependence on frequency.
Document ID
19740030524
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Kim, J. H.
Acosta, A. J.
(California Institute of Technology Pasadena, Calif., United States)
Date Acquired
August 7, 2013
Publication Date
November 1, 1973
Subject Category
Fluid Mechanics
Report/Patent Number
ASME PAPER 73-WA/FE-8
Meeting Information
Meeting: Winter Annual Meeting
Location: Detroit, MI
Start Date: November 11, 1973
End Date: November 15, 1973
Sponsors: American Society of Mechanical Engineers
Accession Number
74A13274
Distribution Limits
Public
Copyright
Other

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