LASER-DOPPLER ANEMOMETER MEASUREMENTS OF TURBULENCE IN DRAG REDUCING FLOWS

The drag reduction, mean flow, and turbulence properties of several concentrations of Separan AP30 and water in a fully developed turbulent pipe flow were studied using a two-component laser-Doppler anemometer. This measurement technique was chosen because of its inherent advantages over the traditional measuring techniques that have been used in previous studies of drag reducing flows. A polymer injection technique was used. A slurry of methanol and polymer powder was injected directly into the flowing water, providing a fresh, unaged polymer solution. (Author Modified Abstract)

• Corporate Authors:

  University of Michigan, Ann Arbor

  Department of Mechanical Engineering and Applied Mechanics
  Ann Arbor, MI  United States  48109
• Authors:
  • Guenterberg, G L
• Publication Date: 1972-12

Media Info

• Pagination: 101 p.

Subject/Index Terms

• TRT Terms: Additives; Anemometers; Drag; Flow; Lasers; Pipe flow; Polymers; Probes (Measuring devices); Turbulence
• Candidate Terms: Turbulent flow
• Old TRIS Terms: Drag reduction; Laser anemometers; Polymer additives; Turbulence probes
• Subject Areas: Design; Marine Transportation;

Filing Info

• Accession Number: 00044703
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: Tech Rpt
• Contract Numbers: N00014-67A-0181-0030
• Files: TRIS
• Created Date: Jul 31 1973 12:00AM