A NOTE ON THE INHIBITION OF CAVITATION IN DILUTE POLYMER SOLUTIONS
Cavitation inception was investigated on a series of hemispherical nosed bodies ranging in diameter from 6.3 mm (1/4 inch) to 203.2 mm (8 inches) in both pure water and dilute aqueous polymer solutions. The desinent value of cavitation index is reduced by as much as 50% on the smaller bodies but the polymer effect is almost negligible on the largest body. There is strong evidence that the favorable effect of polymer addition is due to a reorientation of the flow field near a laminar separtation bubble. It is further noted that the effect is probably limited to Reynolds numbers typical of laboratory experiments and would not exist at full scale conditions.
- Presented at the Joint Fluids Engineering and Gas Turbine Conference, 21-25 Mar 76, New Orleans, La.
Pennsylvania State University, University ParkApplied Research Laboratory
University Park, PA USA 16802
- Arndt, REA
- Billet, M L
- Holl, J W
- BAKER, C B
- Publication Date: 1975-11-13
- Pagination: 15 p.
- TRT Terms: Additives; Bodies of revolution; Cavitation (Mechanics); Cavitation erosion; Polymers
- Old TRIS Terms: Polymer additives
- Subject Areas: Design; Marine Transportation;
- Accession Number: 00142807
- Record Type: Publication
- Source Agency: National Technical Information Service
- Report/Paper Numbers: TM-75-285 Tech Memo.
- Contract Numbers: N00017-73-C-1418
- Files: TRIS
- Created Date: Dec 15 1976 12:00AM