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ISSN Online: 2377-424X

ISBN Print: 1-56032-797-9

International Heat Transfer Conference 11
August, 23-28, 1998, Kyongju, Korea

EFFECT OF FREE-STREAM TURBULENCE ON HEAT TRANSFER BEHIND A RIB AND INCLINED DOWNWARD STEP

Get access (open in a dialog) DOI: 10.1615/IHTC11.850
pages 189-194

Abstract

In the paper, interaction of separated turbulent flow with highly turbulent free-stream field is analyzed. Experimental data on the effect of free-stream turbulence (Tus≈l÷15%) on the pressure coefficients and heat-transfer processes behind a rib and downward step of different height (H=3÷30 mm) are presented. The inclination angle of the step wall varied from 90° to 15° Peculiarities are considered of heat transfer intensification in the recirculation zone as well as in the reattachment and relaxation regions as dependent on geometric parameters of the obstacles.