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- W2372763819 abstract "The conventional k-e turbulence model was used together with the standard wall function to predict 3-D turbulent flow and heat transfer in helix-alike internal cooling passage.In this newly proposed scheme of internal cooling passage of the gas turbine blades,the staggered arrays of discontinuous rectangular-fins with a certain angle were used along two inside opposite walls.This feature of geometrical arrangement was used to imitate efficaciously the feature ofturbulent flow and heat transfer in helical-fin tube.Results show that,due to the presence of tilted discontinuous rectangular-fins,a complicated 3-D accelerated spiral-flow which just likes the fluid to flow in helical-fin tube has been found and becomes more remarkable with the increasing value of angleα.This flow feature is found to have significant effects on enhancing the surface heat transfer.It is evident from the results that the averaged Nusselt number decrease as Reynolds number increase and the friction factor increase with increasing Reynolds number for all the cases studied." @default.
- W2372763819 created "2016-06-24" @default.
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- W2372763819 date "2005-01-01" @default.
- W2372763819 modified "2023-09-25" @default.
- W2372763819 title "Numerical analysis on turbulent flow and heat transfer in helix-alike internal cooling passage" @default.
- W2372763819 hasPublicationYear "2005" @default.
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