Turbulent Flow Drag-Reduction by Dilute Poly(Ethylene Oxide) Solutions in Capillary Tubes.

Abstract

The study was initiated to investigate turbulent flow drag-reduction by dilute poly(ethylene oxide) solutions in capillary tubes and thereby elucidate the mechanism of drag-reduction through interpretation of the experimental results. Flow through capillary tubes was chosen as a means to (1) obtain a large ratio of solid surface area to fluid volume, and (2) obtain high shear stresses at low Reynolds numbers. This allowed investigation of surface effects and polymer degradation as a function of a number of variables which are known to influence drag-reduction. (Author)

Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1971
Accession Number
AD0720688

Entities

People

  • Ira Michael Felsen

Tags

DTIC Thesaurus Topics

  • Alkenes
  • Capillary Tubes
  • Drag
  • Drag Reduction
  • Ethylene Oxide
  • Ethylenes
  • Flow
  • Microvessels
  • Oxides
  • Polymer Degradation
  • Reynolds Number
  • Shear Stresses
  • Tubes
  • Turbulent Flow

Readers

  • Fluid Dynamics.
  • Materials Science and Engineering.