DEVELOPING HEAT-TRANSFER IN RECTANGULAR CHANNELS WITH RIB TURBULATORS Academic Article

abstract

• The combined effects of the rib angle-of-attack and the channel aspect ratio on the distributions of the local heat transfer coefficient for developing flow in short rectangular channels (L/D = 10 and 15) with a pair of opposite rib-roughened walls were determined for Reynolds numbers from 10 000 to 60 000. The rib angle-of-attack was varied from 90 to 60, to 45, and to 30, whereas the corresponding channel width-to-height ratio was varied from 1 to 2 and to 4, respectively. Semi-empirical heat transfer and friction correlations were obtained to account for rib angle, rib spacing, channel aspect ratio, rib height and Reynolds number. The results can be used in the design of turbine blade cooling channels. 1988.

authors

• Han, Je-Chin

published proceedings

• INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER

author list (cited authors)

• HAN, J. C., & PARK, J. S.

citation count

• 394

complete list of authors

• HAN, JC||PARK, JS

publication date

• January 1988

publisher

• Elsevier  Publisher

published in

• International Journal of Heat and Mass Transfer  Journal

Digital Object Identifier (DOI)

• 10.1016/0017-9310(88)90235-9

start page

• 183

end page

• 195

volume

• 31

issue

• 1

URL

• http://dx.doi.org/10.1016/0017-9310(88)90235-9