Drag Reduction Degradation of Dilute Polymer Solutions in Turbulent Tube Flow

Abstract

Drag reduction degradation characteristics of Separan AP30 are reported. A recycle tube flow experiment was used to investigate this property of drag reducing polymer solutions. Experimental pressure gradient and flow rate measurements were made as a function of time. From this data, friction factor- time plots on log-log coordinates were constructed, all of which exhibited three distinct regions which are discussed. Correlations are presented relating the process time in which maximum drag reduction exists, and the process time in which significant drag reduction exists, to the polymeric and system flow variables.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1971
Accession Number
AD0734676

Entities

People

  • Nicholas D. Sylvester
  • Stanley M. Kumor

Organizations

  • University of Notre Dame

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Alkenes
  • Chemical Reactions
  • Chemistry
  • Drag Reduction
  • Engineering
  • Experimental Data
  • Flow Rate
  • Macromolecules
  • Materials
  • Measurement
  • Mixing
  • Molecular Weight
  • Molecules
  • Plastic Explosives
  • Polymer Degradation
  • Polymers
  • Pressure Gradients

Readers

  • Agricultural Chemistry/Soil Science
  • Fluid Mechanics and Fluid Dynamics.
  • Mechanical Engineering/Mechanics of Materials.