DILUTION IN A TURBULENT BOUNDARY LAYER WITH POLYMERIC FRICTION REDUCTION

The dilution by turbulent mixing of a polymer solution after injection into a turbulent boundary layer with polymeric friction reduction is considered. Two-dimensionality and constant-pressure flow over a flat plate are assumed. The intermittency of turbulence and scalar concentration, as well as the effects of friction-reduction on the mean velocity profile, are treated. The 'negative roughness' analogy of polymeric friction reduction is invoked to justify the assumption that all significant properties of the outer-layer region satisfy the newtonian-fluid outer-layer similarity laws, including those for velocity-defect, turbulence intermittency, and mean concentration in the final zone of mixing. (Author)

  • Corporate Authors:

    Naval Undersea Research and Development Center

    San Diego, CA  USA 
  • Authors:
    • Fabula, A G
    • Burns, T J
  • Publication Date: 1970-4

Media Info

  • Pagination: 32 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00033634
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: NUC-TP-171
  • Files: TRIS
  • Created Date: Aug 25 1972 12:00AM