Effect of Polymer Additives on Cavitation Development and Noise in Water Flow Through an Orifice

[+] Author and Article Information
R. Ōba, Y. Itō

Institute of High Speed Mechanics, Tohoku University, Sendai, Japan

K. Uranishi

Tohoku University, Sendai, Japan

J. Fluids Eng 100(4), 493-499 (Dec 01, 1978) (7 pages) doi:10.1115/1.3448713 History: Received May 04, 1976; Online October 12, 2010


The cavitation behavior and the shock pressure were experimentally investigated in dilute aqueous solutions of polymer flowing through an orifice, and the following facts were observed: (i) Very small quantities of polymer additives effectively suppressed both the inception and the development of cavitation, (ii) nonspherical cavitation bubbles were observed at any polymer concentration tested here, and the nonsphericity tended to increase with concentration, (iii) the spectral frequencies of shock pressures were principally confined within the audio frequency range. With an increase in concentration, the energy of the pressures drastically decreased and the frequency range shifted downwards.

Copyright © 1978 by ASME
Your Session has timed out. Please sign back in to continue.





Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In