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Turbulent heat transfer in a trapezoidal channel with transverse and v-shaped ribs on two opposite walls

by Subramanian, Karthik

Abstract (Summary)
This study investigates the turbulent heat transfer and friction in a trapezoidal channel with opposite walls roughened with transverse and v-shaped ribs. The roughened channel depicts the internal cooling passage of an aerofoil near the trailing edge. The various configurations investigated for this study are smooth channel, channel with 90° transverse ribs and channel with v-shaped ribs angled at 45°. The pitch-toheight ratio (P/e), rib height-to-hydraulic diameter ratio (e/Dh) and the aspect ratio (W/e) were maintained at 12, 0.1906 and 1, respectively. The configuration was tested for Reynolds number ranging from 7,000 to 40,000. The 45° rib was found to produce the maximum heat transfer and minimum pressure loss.
Bibliographical Information:

Advisor:Lau, Sai C.; Anand, N. K.; Hassan, Y. A.

School:Texas A&M University

School Location:USA - Texas

Source Type:Master's Thesis

Keywords:turbulent heat transfer trapezoidal channel

ISBN:

Date of Publication:12/01/2005

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