SOME ASPECTS OF FULLY DEVELOPED TURBULENT FLOW IN NON-CIRCULAR DUCTS

Uniform-density turbulent flow in circular pipe containing one or two rods located off-center is described. The friction factor in both cases was found to be approximately 5% higher than the simple pipe friction factor. The shear stress distribution on the rod surface was determined using calibrated boundary-layer fences. The normalized shear stress distributions were independent of Reynolds number in the range 37,000 to 215,000. Mean-velocity measurements were obtained to check the validity of the universal law of the wall near the rod surface. Secondary-flow velocities were measured and effects observed. Work relates to flow in the coolant channels of several designs of nuclear reactor which contain clusters of fuel pins.

• Corporate Authors:

  Cambridge University Press

  200 Euston Road
  London NW1,   England 
• Authors:
  • Kacker, S C
• Publication Date: 1973-2-20

Media Info

• Features: References;
• Pagination: p. 583-602
• Serial:
  • Journal of Fluid Mechanics
  • Volume: 57
  • Issue Number: Pt 3
  • Publisher: Cambridge University Press

Subject/Index Terms

• TRT Terms: Flow; Fuel elements; Shear stress; Skin resistance; Turbulence; Velocity; Walls
• Candidate Terms: Turbulent flow
• Old TRIS Terms: Nuclear reactor fuel elements; Velocity profiles; Wall shear stress
• Subject Areas: Design; Marine Transportation;

Filing Info

• Accession Number: 00047651
• Record Type: Publication
• Source Agency: Engineering Index
• Files: TRIS
• Created Date: Oct 31 1973 12:00AM