Volume 4: Heat Transfer; Electric Power; Industrial and Cogeneration 1998
DOI: 10.1115/98-gt-431
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Effect of Coolant Injection on Heat Transfer for a Simulated Turbine Airfoil Leading Edge

Abstract: This paper presents an experimental study of the heat transfer on the leading edge of a simulated film cooled turbine airfoil. Previous studies have shown that use of film cooling on the leading edge of an airfoil can significantly increase the heat transfer coefficients around the leading edge which counter-acts the benefits of the adiabatic effectiveness provided by the coolant film. These heat transfer results complement our earlier study of the adiabatic effectiveness for this leading edge and film cooling… Show more

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Cited by 8 publications
(13 citation statements)
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“…Two separate regions of high heat transfer coefficient were predicted computationally downstream of the off-stagnation holes whereas only one large region of elevated heat transfer coefficients is observed experimentally. Moreover the numerical prediction of the laterally averaged heat transfer coefficient augmentation exhibited good agreement for low blowing ratios with experimental data from Yuki et al (1998).…”
Section: Computational Predictions Of Heat Transfer Coefficient Augmementioning
confidence: 69%
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“…Two separate regions of high heat transfer coefficient were predicted computationally downstream of the off-stagnation holes whereas only one large region of elevated heat transfer coefficients is observed experimentally. Moreover the numerical prediction of the laterally averaged heat transfer coefficient augmentation exhibited good agreement for low blowing ratios with experimental data from Yuki et al (1998).…”
Section: Computational Predictions Of Heat Transfer Coefficient Augmementioning
confidence: 69%
“…Since one of the purposes of the present study was to compare the computational prediction of heat transfer coefficients with experimental data, the geometry of the leading edge used in these simulations was identical to the computational study carried out by Dobrowolski et al (2009) and as close as possible to the physical model employed by Yuki et al (1998) and Johnston et al (1999). However it should be pointed out that these studies had a quarter circle model with a suction slot on the bottom whereas the present study used a half cylinder model.…”
Section: Description Of the Modelmentioning
confidence: 99%
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