Conjugate Heat Transfer Analysis of an Internally Cooled Gas Turbine Vane

S. I. Kim, L. Lebel, S. Sreekanth, H. Ozem

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Abstract

A conjugate heat transfer (CHT) method was used to perform the aerothermal analysis of an internally cooled turbine vane, and was validated against experimental and empirical data.
Firstly, validation of the method with regard to internal cooling was done by reproducing heat transfer test data in a channel with pin fin heat augmenters, under steady constant wall temperature. The computed Nusselt numbers for the two tested configurations (full length circular pin fins attached to both walls and partial pin fins attached to one wall only) showed good agreement with the measurements. Sensitivity to mesh density was evaluated under this simplified case in order to establish mesh requirements for the analysis of the full component.
Secondly, the CHT method was applied onto a turbine vane test case from an actual engine. The predicted vane airfoil metal temperature was compared to the measured thermal paint data and the in-house empirical predictions. The CHT results agreed well with the thermal paint data and showed better prediction than the current empirical modeling approach.
Original languageEnglish
Title of host publicationConference Proceedings for AERO2013 CASI 60th Aeronautics Conference and AGM
PublisherCanadian Aeronauctics and Space Institute
Number of pages10
Publication statusPublished - 2013
EventAERO2013 CASI 60th Aeronautics Conference and AGM - Toronto, Canada
Duration: 30 Apr 201302 May 2013

Conference

ConferenceAERO2013 CASI 60th Aeronautics Conference and AGM
CountryCanada
CityToronto
Period30/04/201302/05/2013

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