GENERALIZATION OF THE SEMI-EMPIRICAL THEORY OF TURBULENCE TO FLOWS NEAR ROUGH SURFACES WITH VARIOUS MODES OF ROUGHNESS

Turbulent flow near a wall is considered. On the basis of experimental data, a new concept is introduced-a sublayer near the wall-and a universal two-layer model of the motion is assumed that is valid for turbulent flow at smooth and rough walls. From this, and using Prandtl's semiempirical theory of turbulence, is set up a generalization to flows as surfaces with arbitrary roughness properties. As a result, new and unique relationships are defined for computing the flow near walls with arbitrary surface roughness and for all stages of its manifestation.

• Corporate Authors:

  Scripta Publishing Corporation

  Investment Building
  Washington, DC  United States  20005
• Authors:
  • Nikitin, I K
• Publication Date: 1972-6

Media Info

• Features: References;
• Pagination: p. 44-52
• Serial:
  • Fluid Mechanics-Soviet Research
  • Volume: 1
  • Issue Number: 3
  • Publisher: Scripta Publishing Corporation

Subject/Index Terms

• TRT Terms: Boundary layer; Flow; Roughness; Shear stress; Turbulence; Walls
• Candidate Terms: Turbulent flow
• Old TRIS Terms: Boundary layer theory; Wall shear stress
• Subject Areas: Design; Marine Transportation;

Filing Info

• Accession Number: 00044134
• Record Type: Publication
• Source Agency: Engineering Index
• Files: TRIS
• Created Date: May 11 1973 12:00AM