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RESEARCH PAPERS

Navier–Stokes Analysis of Turbine Blade Heat Transfer

[+] Author and Article Information
R. J. Boyle

NASA Lewis Research Center, Cleveland, OH 44135

J. Turbomach 113(3), 392-403 (Jul 01, 1991) (12 pages) doi:10.1115/1.2927888 History: Received January 10, 1990; Online June 09, 2008

Abstract

Comparisons with experimental heat transfer and surface pressures were made for seven turbine vane and blade geometries using a quasi-three-dimensional thin-layer Navier–Stokes analysis. Comparisons are made for cases with both separated and unseparated flow over a range of Reynolds numbers and free-stream turbulence intensities. The analysis used a modified Baldwin-Lomax turbulent eddy viscosity model. Modifications were made to account for the effects of: (1) free-stream turbulence on both transition and leading edge heat transfer; (2) strong favorable pressure gradients on relaminarizations; and (3) variable turbulent Prandtl number on heat transfer. In addition, the effect on heat transfer of the near-wall model of Deissler is compared with the Van Driest model.

Copyright © 1991 by The American Society of Mechanical Engineers
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