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ISSN Online: 2377-424X

ISBN Print: 0-89116-130-9

International Heat Transfer Conference 6
August, 7-11, 1978, Toronto, Canada

THE INFLUENCE OF LONGITUDINAL PRESSURE GRADIENT AND TURBULENCE OF THE FLOW UPON HEAT TRANSFER IN TURBINE BLADES

Get access (open in a dialog) DOI: 10.1615/IHTC6.2050
pages 79-84

Résumé

Experimental investigation results of local values of heat transfer coefficients outside on aerofoil profile in the presence of a transonic flow of diverse turbulence airfoil cascades inlet are presented in this paper. The influence of longitudinal pressure gradient and turbulence flow degree ε1, on the structure of the heat boundary layer and heat transfer intensity is shown. The phenomena of relaminarization, of localized boundary layer separation are discussed, Empirical equations for heat transfer calculations under these conditions are presented.
The experimental investigation has been carried out in the following range of defining parameters: 0.5·106 ≤ Re2 ≤ 5·106; 0.5% ≤ ε1 ≤ 12%