An investigation of heat transfer and friction for rib-roughened surfaces Academic Article uri icon

abstract

  • An investigation of rib-roughened surface was undertaken to determine the effects of rib shape, angle of attack and pitch to height ratio on friction factor and heat-transfer results. A parallel plate geometry was used. Based on the law of the wall similarity and the application of the heat-momentum analogy developed by Dipprey and Sabersky, a general correlation for friction factor and heat transfer was developed to account for rib shape, spacing and angle of attack. Ribs at a 45 angle of attack were found to have superior heat transfer performance at a given friction power when compared to ribs at a 90 angle of attack or when compared to sand-grain roughness. 1978.

published proceedings

  • International Journal of Heat and Mass Transfer

author list (cited authors)

  • Han, J. C., Glicksman, L. R., & Rohsenow, W. M.

publication date

  • January 1, 1978 11:11 AM