DRAG REDUCTION AND STRUCTURAL TURBULENCE IN FLOWING POLYOX SOLUTIONS

Structural turbulence has been detected in dilute aqueous solutions of Polyox Coagulant (also known to be a highly effective drag-reducing agent). The flow line which characterizes structural turbulence from its onset in the laminar region passes well into the fully turbulent region (Reynolds turbulence) with virtually no change in slope, implying that the same molecular oscillations or segmental motions responsible for structural turbulence are now operative in drag reduction. The persistence of structural turbulence at very low concentrations is rationalized on the basis of Busses explanation of the role of polymer entanglements in viscosity and elastic turbulence.

• Corporate Authors:

  Interscience Publishers

  605 Third Avenue
  New York, NY  United States  10016
• Authors:
  • Little, R C
  • Wiegard, M
• Publication Date: 1970-2

Media Info

• Features: References;
• Pagination: p. 409-419
• Serial:
  • Journal of Applied Polymer Science
  • Volume: 14
  • Issue Number: 2
  • Publisher: Interscience Publishers

Subject/Index Terms

• TRT Terms: Additives; Boundary layer; Drag; Laminar flow; Polymers; Turbulence; Turbulent boundary layer
• Old TRIS Terms: Drag reduction; Laminar boundary layer; Polymer additives
• Subject Areas: Design; Marine Transportation;

Filing Info

• Accession Number: 00019438
• Record Type: Publication
• Source Agency: Engineering Index
• Files: TRIS
• Created Date: Nov 19 1973 12:00AM