The Role of the Turbulent Prandtl Number in Turbine Blade Heat Transfer Prediction | Zendy

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The Role of the Turbulent Prandtl Number in Turbine Blade Heat Transfer Prediction

Author(s) -

Kevin Whitaker

Publication year - 1990

Publication title -

sae technical papers on cd-rom/sae technical paper series

Language(s) - English

Resource type - Conference proceedings

SCImago Journal Rank - 0.295

H-Index - 107

eISSN - 1083-4958

pISSN - 0148-7191

DOI - 10.4271/901810

Subject(s) - turbulent prandtl number , prandtl number , turbine blade , turbulence , heat transfer , mechanics , blade (archaeology) , magnetic prandtl number , turbine , gas turbines , environmental science , mechanical engineering , physics , thermodynamics , materials science , aerospace engineering , engineering , nusselt number , reynolds number

Improvement of the prediction of external (gas-to-blade) heat transfer coefficients in gas turbine engines was undertaken. The effects of improved eddy diffusivity of heat modeling in the turbulence model was specifically investigated. A two-dimensional boundary STAN5, was selected and modified by incorporating several different turbulent Prandtl number models. Results indicated that slight effects were attributable to the modified turbulence model. Boundary layer character appeared to be much more significant.

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