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  USA  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

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