TURBULENCE IN WAKES OF ROUGHNESS ELEMENTS

The results of an experimental investigation of the turbulent flow in a pipe roughened with hemispheres are reported. The roughness concentration was varied by changing the size of roughness elements which were uniformly distributed on the smooth boundary. Measurements included intensity of turbulence, macroscale of turbulence, Reynolds stress, mean velocity, pressure gradient, drag force, and shear stress on the smooth boundary. Turbulence and velocity measurements were confined to a vertical plane through the wake center line.

• Corporate Authors:

  American Society of Civil Engineers

  345 East 47th Street
  New York, NY  United States  10017-2398
• Authors:
  • Chen, Chih-Keng
  • Robertson, J A
• Publication Date: 1974-1

Media Info

• Features: References;
• Pagination: p. 53-67
• Serial:
  • Journal of the Hydraulics Division
  • Volume: 100
  • Issue Number: HY1
  • Publisher: American Society of Civil Engineers

Subject/Index Terms

• TRT Terms: Flow; Pipe flow; Reynolds stress; Roughness; Shear stress; Turbulence; Walls
• Candidate Terms: Turbulent flow
• Old TRIS Terms: Reynolds stresses; Wall shear stress
• Subject Areas: Design; Marine Transportation;

Filing Info

• Accession Number: 00054045
• Record Type: Publication
• Source Agency: Engineering Index
• Report/Paper Numbers: ASCE #10257 Paper
• Files: TRIS
• Created Date: May 7 1974 12:00AM