DES study of blade trailing edge cutback cooling performance with various lip thicknesses

DES study of blade trailing edge cutback cooling performance with various lip thicknesses •Detached-eddy simulation of the mixing process between mainstream flow and coolant•Effects of various t/H ratios on blade trailing-edge cutback cooling performance.•Vortex shedding behind the lip plays an important role in near wall cooling efficiency.•Discharge coefficient and adiabatic film-cooling effectiveness agree with experiment.•Thermal mixing has been greatly intensified with the increase of the t/H ratio. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Applied Thermal Engineering Elsevier

DES study of blade trailing edge cutback cooling performance with various lip thicknesses

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Publisher
Elsevier
Copyright
Copyright © 2016 Elsevier Ltd
ISSN
1359-4311
eISSN
1873-5606
D.O.I.
10.1016/j.applthermaleng.2015.11.103
Publisher site
See Article on Publisher Site

Abstract

•Detached-eddy simulation of the mixing process between mainstream flow and coolant•Effects of various t/H ratios on blade trailing-edge cutback cooling performance.•Vortex shedding behind the lip plays an important role in near wall cooling efficiency.•Discharge coefficient and adiabatic film-cooling effectiveness agree with experiment.•Thermal mixing has been greatly intensified with the increase of the t/H ratio.

Journal

Applied Thermal EngineeringElsevier

Published: Apr 25, 2016

References

  • Experimental investigation of airfoil trailing edge heat transfer and aerodynamic losses
    Brundage, A.L.; Plesniak, M.W.; Lawless, P.B.; Ramadhyani, S.
  • The scale-adaptive simulation method for unsteady turbulent flow predictions. part 2: application to complex flows
    Egorov, Y.; Menter, F.R.; Lechner, R.; Cokljat, D.
  • Detached-Eddy Simulation of Transonic Limit Cycle Oscillations Using High Order Schemes
    Wang, B.; Zha, G.-C.
  • A new version of detached eddy simulation, resistant to ambiguous grid densities
    Spalart, P.R.; Deck, S.; Shur, M.L.; Squires, K.D.; Strelets, M.K.; Travin, A.
  • Heat transfer from multiple row arrays of low aspect ratio pin-fins
    Lawson, S.A.; Thrift, K.A.; Thole, A.; Kohli, A.
  • Identification of large coherent structures in supersonic axisymmetric wakes
    von Terzi, D.A.; Sandberg, R.D.; Fasel, H.F.
  • Turbulent heat transfer and large coherent structures in trailing-edge cutback film cooling
    Schneider, H.; von Terzi, D.; Baurer, H.-J.

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