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Microbubbles and Cavitation

Acosta, A. J. and Katz, J. and O'Hern, T. J. (1983) Microbubbles and Cavitation. California Institute of Technology , Pasadena, CA. (Unpublished) http://resolver.caltech.edu/CaltechAUTHORS:20140509-155647418

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Abstract

The present report arose from a joint effort of the California Institute of Technology, The Catholic University of America and the David Taylor Naval Ship Research and Development Center. The initial purpose was to document by both light-scattering and holographic techniques the distribution of microbubbles in laboratory cavitation test facilities (under different conditions of cavitation testing), to compare these two different techniques where feasible and then, as the last stage, to make similar observations of nuclei in natural or oceanic waters. It has been apparent to many workers in the field of cavitation inception that there has not yet been adequate correlation of laboratory and field conditions for cavitation testing - particularly for cavitation inception testing. Thus the proposed work offered the first real opportunity to explore this important connection. Caltech's role in this work was to design and build a holographic system that would be suitable for use either in the laboratory or the field. In the first case we anticipated making laboratory nuclei observations in the Institute's Low Turbulence Water Tunnel (LTWT) jointly with the light-scattering device designed by Professor S. C. Ling of C.U.A. and developed further by Mr. S. Gowing of DTNSRDC. For the latter case, the field work, it was proposed to install the holographic system in a submersible tank to permit holographic recordings of a suitable test volume of fluid. As an initial goal a depth of 100 feet was selected for the maximum depth of operation.


Item Type:Report or Paper (Project Report)
Additional Information:Final Report on Contract N00014-75-C-0064. Report No. E216.2. February 1983. An extensive design engineering and fabrication task such as is represented in the Underwater Holocamera require the efforts of many people for a successful outcome. We should like to express here our gratitude to Elton Daly and Joe Fontana of the Keck Hydraulic Laboratory staff, George Yamaguchi of the Central Engineering staff, Dr. Haskell Shapiro of Shapiro Scientific Instruments, to Sue Berkley and her staff for myriads of details and finally to Justin McCarthy and Thomas Huang of DTNSRDC for their unfailing and enthusiastic support.
Record Number:CaltechAUTHORS:20140509-155647418
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20140509-155647418
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:45657
Collection:CaltechAUTHORS
Deposited By: Kristin Buxton
Deposited On:12 May 2014 16:43
Last Modified:12 May 2014 16:43

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