VELOCITY DISTRIBUTIONS OF ROUGH WALL TURBULENT BOUNDARY LAYERS WITHOUT PRESSURE GRADIENT

Velocity defects which agree well with experimental results are calcualted, where a non-dimensional mixing length at the crest of the roughness element is used as the parameter. Roughness function can be derived by analyzing the flow near the wall, which is related to a Reynolds number based on the mixing length at the crest and the friction velocity. The relation between friction coefficient and non-dimensional mixing length is obtained which agrees with experimental results.

• Corporate Authors:

  Japan Society of Civil Engineers

  1-chome, Yotsuya, Shinjuku-ku
  Tokyo,   Japan  160-0004
• Authors:
  • TSUJI, Y
  • Iida, S
• Publication Date: 1973

Media Info

• Features: References;
• Pagination: p. 60-70
• Serial:
  • Japan Society for Aeronautics & Space Sci-Trans
  • Volume: 16
  • Issue Number: 31
  • Publisher: Japan Society of Civil Engineers

Subject/Index Terms

• TRT Terms: Boundary layer; Roughness; Shear stress; Turbulence; Turbulent boundary layer; Velocity; Walls
• Old TRIS Terms: Velocity profiles; Wall shear stress
• Subject Areas: Design; Marine Transportation;

Filing Info

• Accession Number: 00050534
• Record Type: Publication
• Source Agency: Engineering Index
• Files: TRIS
• Created Date: Jan 11 1974 12:00AM