INFLUENCE OF DISTRIBUTED GRIT-TYPE ROUGHNESS ON THE SPECTRUM OF WALL PRESSURE FLUCTUATIONS OF TURBULENT FLOW IN A TUBE

The results are given from an experimental investigation of the spectral characteristics of turbulent pressure fluctuations as a function of the roughness of the bounding wall. In the experiments the water flow velocity and the relative asperity were varied. The increases in the spectral levels of the wall pressure fluctuations are represented as a function of the dimensionless Strouhal number, and their relationship to the two-layer model of rough-wall turbulence is discussed.

• Corporate Authors:

  American Institute of Physics

  One Physics Ellipse
  College Park, MD  United States  20740-3843
• Authors:
  • Greshilov, E M
• Publication Date: 1972-10

Media Info

• Features: References;
• Pagination: p. 177-182
• Serial:
  • Soviet Physics-Acoustics
  • Volume: 18
  • Issue Number: 2
  • Publisher: American Institute of Physics

Subject/Index Terms

• TRT Terms: Atmospheric pressure; Flow; Pipe flow; Power spectra; Roughness; Turbulence
• Candidate Terms: Turbulent flow
• Old TRIS Terms: Pressure fluctuations
• Subject Areas: Design; Marine Transportation;

Filing Info

• Accession Number: 00047655
• Record Type: Publication
• Source Agency: Engineering Index
• Files: TRIS
• Created Date: Oct 31 1973 12:00AM