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Effect of Internal Crossflow Velocity on Film Cooling Effectiveness—Part I: Axial Shaped Holes
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The effect of feeding shaped film cooling holes with an internal crossflow is not well understood. Previous studies have shown that internal crossflow reduces film cooling effectiveness from axial shaped holes, but little ...
Effect of Internal Crossflow Velocity on Film Cooling Effectiveness—Part II: Compound Angle Shaped Holes
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In gas turbine engines, film cooling holes are commonly fed with an internal crossflow, the magnitude of which has been shown to have a notable effect on film cooling effectiveness. In Part I of this study, as well as in ...
Rib Turbulator Effects on Crossflow-Fed Shaped Film Cooling Holes
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Most studies of turbine airfoil film cooling in laboratory test facilities have used relatively large plenums to feed flow into the coolant holes. However, a more realistic inlet condition for the film cooling holes is a ...
Flow Physics of Diffused-Exit Film Cooling Holes Fed by Internal Crossflow
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Internal crossflow, or internal flow that is perpendicular to the overflowing mainstream, reduces film cooling effectiveness by disrupting the diffusion of coolant at the exit of axial shaped holes. Previous experimental ...