WALL PRESSURE FLUCTUATIONS AT SMOOTH AND ROUGH SURFACES UNDER TURBULENT BOUNDARY LAYERS WITH FAVORABLE AND ADVERSE PRESSURE GRADIENTS

Fluctuating wall pressures under turbulent boundary layers with favorable gradients were measured at both smooth and rough walls. Wall pressure intensity was found to vary in proportion to mean wall shear stress between no-gradient and favorable-gradient flows. Adverse gradient boundary layers were studied over smooth and rough walls. These flows were not self-preserving, and results are presented as functions of longitudinal position. Pressure intensities were concentrated into a comparatively narrow band of frequencies. Pressure statistics are discussed. (Modified author abstract)

• Corporate Authors:

  Massachusetts Institute of Technology

  Acoustics and Vibration Laboratory
  Cambridge, MA  United States 
• Authors:
  • Burton, T E
• Publication Date: 1973-6

Media Info

• Pagination: 138 p.

Subject/Index Terms

• TRT Terms: Boundary layer; Offshore terminals; Pipeline safety; Roughness; Shear stress; Turbulence; Turbulent boundary layer; Walls
• Uncontrolled Terms: Pressure gradients
• Old TRIS Terms: Wall shear stress
• Subject Areas: Design; Marine Transportation; Pipelines;

Filing Info

• Accession Number: 00054095
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: A/V-70208-9 Tech Rpt
• Contract Numbers: N00014-67A-0204-0002
• Files: TRIS
• Created Date: May 7 1974 12:00AM