Flow of the aqueous solutions of Polyox WSR-301, with concentrations of 1 ppm to 100 ppm, and of the pure-solvent (tap-and distilled water) about circular cylinders of diameters 0.5 in. to 1.97 in. was investigated. Direct and pressure integrated drag coefficients, pressure distribution, frequency spectrum, turbulence distribution, etc. were determined for flows of solutions at all levels of degradation and compared with the reference measurements made in pure-solvent flows. During the course of the investigation, a critically degraded solution was observed to cause, at a particular Re, an unforseen instability in the boundary layer and in all the other flow characteristics. This instability which most easily manifested itself in the form of an abrupt drag-force jump from a high subcritical value to a low supercritical value, became the central issue in the investigation.

  • Corporate Authors:

    Naval Postgraduate School

    1 University Circle
    Monterey, CA  United States  93943
  • Authors:
    • Sarpkaya, T
    • Rainey, P G
    • Kell, R E
  • Publication Date: 1972-7-24

Media Info

  • Pagination: 82 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00040914
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: NPS-59SL72072A Final Rpt
  • Files: TRIS
  • Created Date: Feb 14 1973 12:00AM