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.

• Supplemental Notes:
  • Presented at the Joint Fluids Engineering and Gas Turbine Conference, 21-25 Mar 76, New Orleans, La.
• Corporate Authors:

  Pennsylvania State University, University Park

  Applied Research Laboratory
  University Park, PA  United States  16802
• Authors:
  • Arndt, REA
  • Billet, M L
  • Holl, J W
  • BAKER, C B
• Publication Date: 1975-11-13

Media Info

• Pagination: 15 p.

Subject/Index Terms

• TRT Terms: Additives; Bodies of revolution; Cavitation (Mechanics); Cavitation erosion; Polymers
• Old TRIS Terms: Polymer additives
• Subject Areas: Design; Marine Transportation;

Filing Info

• 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