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Experimental Study of Polymer Drag Reduction in a Turbulent Channel Flow

[+] Author Affiliations
Xiaochun Shen, Kihyun Kim, Jamison L. Miller, Ryan Sun-Chee-Fore, Ana I. Sirviente

University of Michigan, Ann Arbor, MI

Paper No. FEDSM2003-45658, pp. 753-761; 9 pages
doi:10.1115/FEDSM2003-45658
From:
  • ASME/JSME 2003 4th Joint Fluids Summer Engineering Conference
  • Volume 1: Fora, Parts A, B, C, and D
  • Honolulu, Hawaii, USA, July 6–10, 2003
  • Conference Sponsors: Fluids Engineering Division
  • ISBN: 0-7918-3696-7 | eISBN: 0-7918-3673-8
  • Copyright © 2003 by ASME

abstract

The effect of polymer injection on the turbulence characteristics of a fully developed turbulent water channel flow was studied. The main focus of this study was to assess the influence of the polymer solution injection concentration and consequent mixing. This study was conducted by measuring the turbulence characteristics of two fully developed turbulent channel flows for a Reynolds number of 5×104 , with different injection concentrations of the same polymer solution but with the same homogeneous concentration at the test section. These measurements were complemented by visualizations of the flow, which revealed the presence of supra-molecular polymer structures. The development of such structures seems to enhance the drag reducing abilities of the polymer solution.

Copyright © 2003 by ASME

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