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- W4239658519 abstract "The secondary flows, including passage and other vortices in a turbine cascade cause significant aerodynamic losses and thermal gradients. Leading-edge modification of the blade has drawn considerable attention as it has been shown to reduce the secondary flows. However, the heat transfer performance of a leading-edge modified blade has not been investigated thoroughly. Since a fillet at the leading edge blade is reported to reduce the aerodynamic loss significantly, the naphthalene sublimation technique with a fillet geometry is used to study local heat (mass) transfer performance in a simulated turbine cascade. The present paper compares Sherwood number distributions on an endwall with a simple blade and a similar blade having modified leading-edge by adding a fillet. With the modified blades, a horseshoe vortex is not observed and the passage vortex is delayed or not observed for different turbulence intensities. However, near the blade trailing edge the passage vortex has gained as much strength as with the simple blade for low turbulence intensity. Near the leading edge on the pressure and the suction surface, higher mass transfer regions are observed with the fillets. Apparently the corner vortices are intensified with the leading-edge modified blade." @default.
- W4239658519 created "2022-05-12" @default.
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- W4239658519 date "2005-01-01" @default.
- W4239658519 modified "2023-09-23" @default.
- W4239658519 title "Influence of Blade Leading Edge Geometry on Turbine Endwall Heat(Mass) Transfer" @default.
- W4239658519 doi "https://doi.org/10.1115/gt2005-68590" @default.
- W4239658519 hasPublicationYear "2005" @default.
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