Flow Transition Phenomena and Heat Transfer Over the Pressure Surfaces of Gas Turbine Blades
Keyword(s):
Detailed examination of flow measurements over concave pressure surfaces suggests that interaction of Taylor-Goertler vorticity with mainstream turbulent exerts only limited influence in enhancing laminar boundary-layer heat transfer. While transition is primarily controlled by the Launder laminarisation criterion, the Goertler number at which it subsequently occurs is not solely determined by turbulence intensity. Adoption of K >2.5.10 ± as a design criterion for the pressure surfaces of turbine blades would appear to have significant advantages in terms of reduced heat transfer, increased lift, and lower aerodynamic drag.
1982 ◽
Vol 104
(2)
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pp. 360-367
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1985 ◽
Vol 107
(3)
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pp. 620-627
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1998 ◽
Vol 39
(14)
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pp. 1449-1457
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1980 ◽
Vol 23
(12)
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pp. 1635-1642
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1994 ◽
Vol 21
(5)
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pp. 695-706
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2009 ◽
Vol 30
(13)
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pp. 1077-1086
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Keyword(s):
Keyword(s):