PRESSURE FLUCTUATIONS IN A TURBULENT BOUNDARY LAYER WITH DISCRETE FLUID SUCTION

Results are given from measurements of the correlative and spectral characteristics of the wall pressure fluctuations in a turbulent boundary layer with discrete fluid suction from the boundary layer through slots, a band of porous material, and a band of perforated material. Simultaneous measurements of the average flow velocity in the controlled boundary layer are described. It is found that suction decreases the longitudinal and transverse correlation in the spectral power density of the wall pressure fluctuations in the low-frequency region; the effect is more pronounced in the case of suction bands having a porous or perforated surface.

• Corporate Authors:

  American Institute of Physics

  One Physics Ellipse
  College Park, MD  United States  20740-3843
• Authors:
  • Lyamshev, L M
  • Salosina, S A
  • Shustikov, A G
• Publication Date: 1974-11

Media Info

• Features: References;
• Pagination: p. 264-267
• Serial:
  • Soviet Physics-Acoustics
  • Volume: 20
  • Issue Number: 3
  • Publisher: American Institute of Physics

Subject/Index Terms

• TRT Terms: Atmospheric pressure; Boundary layer; Power spectra; Soil suction; Turbulence; Turbulent boundary layer
• Uncontrolled Terms: Suction
• Old TRIS Terms: Pressure fluctuations
• Subject Areas: Design; Marine Transportation;

Filing Info

• Accession Number: 00084561
• Record Type: Publication
• Source Agency: Engineering Index
• Files: TRIS
• Created Date: May 19 1975 12:00AM