INFLUENCE OF POLYMER ADMIXTURES ON THE PRESSURE FLUCTUATIONS IN A BOUNDARY LAYER

Investigation was made of the Spectral and correlative characteristics of the wall pressure fluctuations (PF) associated with the injection into the boundary layer of polymer solutions which lower the turbulent frictional drag. The PF and the drag coefficient were measured in a thin boundary layer on the surface of a body of revolution set inside a hydrodynamic tube; the correlation and spectral analyses were performed. It was found that injection of the polymer solution lowers the correlation coefficient and reduces the LF and HF wall PF.

• Supplemental Notes:
  • See also English translation in Sov-Phy Acoust, V16 N1, July-September 1970, pp59-63.
• Corporate Authors:

  Akademiya Nauk

  Kuznetzkimost, dom 9-10
  Moscow,   USSR 
• Authors:
  • Kadykov, I F
  • Lyamshev, L M
• Publication Date: 1970

Media Info

• Pagination: p. 75-80
• Serial:
  • Akusticheskii Zhurnal
  • Volume: 16
  • Issue Number: 1
  • Publisher: Akademiya Nauk

Subject/Index Terms

• TRT Terms: Additives; Atmospheric pressure; Bodies of revolution; Drag; Polymers
• Old TRIS Terms: Drag reduction; Polymer additives; Pressure fluctuations
• Subject Areas: Design; Marine Transportation;

Filing Info

• Accession Number: 00019116
• Record Type: Publication
• Source Agency: Engineering Index
• Files: TRIS
• Created Date: Oct 29 1971 12:00AM