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Project Number 4
Date of Summary March 31, 1980
Subject Cavitating Water Jet Cleaning Nozzle
Performing Activity Daedalean Associates, Inc.
Principal Investigator Dr. A. P. Thiruvengadam
Contracting Agency Office of Naval Research
Completion Complete
Description To harness the destructive forces of cavitation erosion in a water jet nozzle for cleaning underwater structural joints.
Progress Complete. A hand-held, gun-like device was tested by divers on an offshore navigation structure. Cleaning rate to bright metal on 6-year marine growth was 1 square foot per minute. Slight thrust from the jet was experienced, there was not much turbulence in the water to obscure the divers' view. If manufactured for production, the luger-like device needs to be lightened to about one-half its present weight, which appears feasible.
Reports
AA (2.839 KB) File in Adobe's Portable Document Format (PDF) . Parker, J. T., Bohli, W. H., Thiruvengadam, A. P, A Cavitating Water Jet Cleaning System for Removing Marine Growth and Fouling from Offshore Platforms, Daedalean Associates, Inc., December 1979. A film documentary is being prepared.
 

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