TURBINE BLADE LEADING EDGE IMPINGEMENT COOLING FROM NORMAL OR TANGENTIAL JETS WITH CROSSFLOW EFFECT | Zendy

Lesley M. Wright | Zendy; Nian Wang | Zendy; Mingjie Zhang | Zendy; Sulaiman M. Alsaleem | Zendy; Je-Chin Han | Zendy

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TURBINE BLADE LEADING EDGE IMPINGEMENT COOLING FROM NORMAL OR TANGENTIAL JETS WITH CROSSFLOW EFFECT

Author(s) -

Lesley M. Wright,

Nian Wang,

Mingjie Zhang,

Sulaiman M. Alsaleem,

Je-Chin Han

Publication year - 2019

Publication title -

frontiers in heat and mass transfer

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.404

H-Index - 18

ISSN - 2151-8629

DOI - 10.5098/hmt.13.9

Subject(s) - thermal fluids , frontier , turbine blade , leading edge , thermal , blade (archaeology) , mechanics , mechanical engineering , aerospace engineering , gas turbines , materials science , enhanced data rates for gsm evolution , turbine , heat transfer , engineering , thermodynamics , physics , political science , heat transfer coefficient , law , telecommunications

This study investigates turbine blade, leading edge cooling from normal or tangential impinging jets. These jets impinging on a semi-cylindrical, inner surface are constrained to discharge in a single direction. The downstream jets are affected by the crossflow originating from the upstream jets. To understand the thermal flow physics, numerical simulations are performed using the realizable k- turbulence model. Both the experimental and numerical results show crossflow is more detrimental to normal impinging jets than the tangential jets. Furthermore, with a significant temperature drop across the jet plate, designers must correctly interpret jet impingement results.

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