Heat Transfer Characteristics of Turbulent Flow in a Square Channel With Angled Discrete Ribs Conference Paper uri icon


  • Experiments have been conducted to study the turbulent heat transfer and friction for fully developed flow of air in a square channel in which two opposite walls are roughened with 90° full ribs, parallel and crossed full ribs with angles-of-attack (α) of 60° and 45°, 90° discrete ribs, and parallel and crossed discrete ribs with = 60°, 45°, and 30°. The discrete ribs are staggered in alternate rows of three and two ribs. Results are obtained for a rib height-to-channel hydraulic diameter ratio of 0.0625, a rib pitch-to-height ratio of 10, and Reynold numbers between 10,000 and 80,000.

author list (cited authors)

  • Lau, S. C., McMillin, R. D., & Han, J. C.

citation count

  • 4

publication date

  • June 1990