DRAG REDUCTION AND DEGRADATION OF DILUTE POLYMER SOLUTIONS IN TURBULENT PIPE FLOWS

Drag reduction caused by dilute polyethylene oxide (POLYOX WSR-301) and anionic charged polyacrylimide (MAGNIFLOC 835A) polymer solutions was studied experimentally in 1.918- and 0.455-cm ID smooth pipes. The POLYOX solutions tested are superior in drag reduction but inferior in shear-degradation resistance compared to the MAGNIFLOC solutions at corresponding concentrations. A three-layer mean velocity profile model appears to be more consistent with current and other data than a traditional two-layer model. The onset of measured drag reduction depends upon solution concentration and is seriously affected by shear degradation. (Author)

  • Corporate Authors:

    Naval Ship Research and Development Center

    Washington, DC  USA 
  • Authors:
    • Huang, T T
    • Santelli, N
  • Publication Date: 1971-8

Media Info

  • Pagination: 41 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00025591
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: NSRDC-3677
  • Files: TRIS
  • Created Date: Feb 4 1972 12:00AM