2018
DOI: 10.4028/www.scientific.net/df.16.30
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Numerical Approach at Flat Plate for Predicting the Film Cooling Effectiveness Part A: Effect Blowing Ratio

Abstract: Film cooling is vital for gas turbine blades to protect them from thermal stresses and high temperatures due to the hot gas flow in the blade surface. Film cooling is applied to almost all external surfaces associated with aerodynamic profiles that are exposed to hot combustion gases such as main bodies, end-walls, blade tips and leading edges. In a review of the literature, it was found that there are strong effects of free-stream turbulence, surface curvature and hole shape on film cooling performance also b… Show more

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Cited by 2 publications
(1 citation statement)
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“…Martini et al [26] investigated how three different slot designs used in modern blades affect the film cooling effectiveness, heat transfer coefficients and discharge coefficients in the near slot region of the cutback. These geometries featured different internal slot geometries but no external lands on the cutback surface.Kebir et al [27,28] investigate the effect of injection angles and blowing ratio in flat plate to predict on the film cooling effectiveness. Simulation has revealed the difference of injection angles ranging from 35°,45°,55°,65° and 90° with different blowing, where the low blowing ratios are represented by M = 0.5, and the high blowing ratios by M = 1.0 and 1.5.…”
Section: Introductionmentioning
confidence: 99%
“…Martini et al [26] investigated how three different slot designs used in modern blades affect the film cooling effectiveness, heat transfer coefficients and discharge coefficients in the near slot region of the cutback. These geometries featured different internal slot geometries but no external lands on the cutback surface.Kebir et al [27,28] investigate the effect of injection angles and blowing ratio in flat plate to predict on the film cooling effectiveness. Simulation has revealed the difference of injection angles ranging from 35°,45°,55°,65° and 90° with different blowing, where the low blowing ratios are represented by M = 0.5, and the high blowing ratios by M = 1.0 and 1.5.…”
Section: Introductionmentioning
confidence: 99%