BRETTING'S DESIGN FORMULAE FOR TURBULENT FLOW IN CLOSED CONDUITS

A review of A.E. Bretting's work is given in which he developed from fundamental considerations a series of formulas, related to the Manning formula, for rough-turbulent flow in closed conduits. It is shown that the Bretting formulas are a considerable improvement on the Manning formula and take into account relative roughness and Reynolds number, which make them valid over a greater range of flow than the Manning formula.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00097845
• Corporate Authors:

  South African Institute of Civil Engineers

  P.O. Box 1187, 75 Marshall Street
  Johannesburg,   South Africa 
• Authors:
  • Olesen, K E
• Publication Date: 1971-12

Media Info

• Features: References;
• Pagination: p. 441-446
• Serial:
  • CIVIL ENGINEER IN SOUTH AFRICA
  • Volume: 13
  • Issue Number: 12
  • Publisher: South African Institution of Civil Engineers
  • ISSN: 0009-7845

Subject/Index Terms

• TRT Terms: Flow; Pipe flow; Resistance tests; Roughness; Skin resistance; Turbulence
• Candidate Terms: Turbulent flow
• Subject Areas: Design; Marine Transportation;

Filing Info

• Accession Number: 00041341
• Record Type: Publication
• Source Agency: Engineering Index
• Files: TRIS
• Created Date: Mar 2 1973 12:00AM