NON-NEWTONIAN EFFECTS ON FLOW GENERATED CAVITATION AND ON CAVITATION IN A PRESSURE FIELD

Observations are presented which show that the stresses in a flow field of a very dilute polymer are not well enough described by the Navier-Stokes equations to accurately predict cavitation. The constitutive equation for the particular polymer and concentration used is needed. The second-order fluid form in which accelerations are relatively important appears capable of explaining observed cavitation suppression by changing the pressure field due to flow. Bubble dynamics in stationary dilute polymer solutions are also examined and found to be little different from those in water. (Author)

• Corporate Authors:

  University of California, La Jolla

  Department of Aerospace and Mechanical Engineering Sciences
  San Diego, CA  United States 
• Authors:
  • Ellis, A T
  • Ting, R Y
• Publication Date: 1970-9

Media Info

• Pagination: 26 p.

Subject/Index Terms

• TRT Terms: Additives; Cavitation (Mechanics); Nonnewtonian flow; Polymers; Pressure fields
• Old TRIS Terms: Polymer additives
• Subject Areas: Design; Marine Transportation;

Filing Info

• Accession Number: 00024844
• Record Type: Publication
• Source Agency: National Technical Information Service
• Contract Numbers: N00014-67-A-01090007
• Files: TRIS
• Created Date: Feb 4 1972 12:00AM