Numerical investigation of heat transfer and friction of rib-roughened channel

S. Parameswaran, C. V. Chok

Research output: Contribution to conferencePaper

Abstract

Numerical studies are performed on rib-roughened, two-dimensional channel to determine the effects of rib shape, rib height to channel height ratio and Reynolds number on friction factor and heat transfer for a range of Reynolds number from 15,000 to 50,000. Only symmetric ribs on top and bottom walls are investigated. A body-fitted, finite-volume based numerical method is employed to solve the incompressible Navier-Stokes equations. The standard κ-ε model with wall function is employed to take account of the turbulence. The numerical predictions are compared with published experimental data by other researchers and the predictions agree qualitatively with the experiments. Further work to refine the turbulence model is in progress. With some additional efforts, the software developed for the present study could be used in the design of turbine airfoil cooling passages.

Original languageEnglish
Pages49-53
Number of pages5
StatePublished - 1990
EventWinter Annual Meeting of the American Society of Mechanical Engineers - Dallas, TX, USA
Duration: Nov 25 1990Nov 30 1990

Conference

ConferenceWinter Annual Meeting of the American Society of Mechanical Engineers
CityDallas, TX, USA
Period11/25/9011/30/90

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    Parameswaran, S., & Chok, C. V. (1990). Numerical investigation of heat transfer and friction of rib-roughened channel. 49-53. Paper presented at Winter Annual Meeting of the American Society of Mechanical Engineers, Dallas, TX, USA, .