THE INFLUENCE OF DRAG REDUCING POLYMER ADDITIVES ON SURFACE PRESSURE FLUCTUATIONS ON ROUGH SURFACES

Experimental measurements were made to determine the effect of drag reducing polymer additives on the surface pressure fluctuations on smooth and rough surfaces in relative motion with water. Changes in surface pressure fluctuation intensity, caused either by the addition of drag reducing polymer or by changes in surface roughness, or both, were found to correlate with changes in surface shear.(Author)

• Corporate Authors:

  Saint Anthony Falls Hydraulic Laboratory

  University of Minnesota, Mississippi River at Third Avenue SE
  Minneapolis, MN  United States  55414
• Authors:
  • Killen, J M
  • Almo, J A
• Publication Date: 1971-9

Media Info

• Pagination: 52 p.

Subject/Index Terms

• TRT Terms: Additives; Atmospheric pressure; Drag; Polymers; Roughness; Shear stress; Walls
• Old TRIS Terms: Drag reduction; Polymer additives; Pressure fluctuations; Wall shear stress
• Subject Areas: Design; Marine Transportation;

Filing Info

• Accession Number: 00041488
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: 119 Proj Rpt
• Contract Numbers: N00014-67A-0113-0007
• Files: TRIS
• Created Date: Mar 2 1973 12:00AM