2013
DOI: 10.1115/1.4006663
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An Experimental Study on Aerodynamic Performance of Turbine Nozzle Guide Vanes With Trailing-Edge Span-Wise Ejection

Abstract: The present experimental study is to examine the influence of trailing-edge coolant ejection with the span-wise inclination on the aerodynamic loss of turbine nozzle guide vanes. This study uses a cascade of five vanes located in the test section of a low-speed wind tunnel. The vanes have the profile of high-pressure nozzle guide vanes, and the central vane is equipped with the internal cooling and the trailing-edge coolant ejection. The coolant is ejected through trailing-edge slots that are inclined in the s… Show more

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Cited by 10 publications
(2 citation statements)
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“…The goal of the research presented in this paper is to assess main gas path ingestion behavior and rim cavity cooling performance in the presence of both purge and vane trailing edge cooling flows using engine-representative geometries at engine-relevant conditions. Although there have been many studies on the performance of purge flows in the wheelspace cavity and the aerodynamic effects of vane trailing edge flow [20,21], a public study on ingestion and rim cavity cooling performance in which both cooling flows are present together has not been completed.…”
Section: Literature Reviewmentioning
confidence: 99%
“…The goal of the research presented in this paper is to assess main gas path ingestion behavior and rim cavity cooling performance in the presence of both purge and vane trailing edge cooling flows using engine-representative geometries at engine-relevant conditions. Although there have been many studies on the performance of purge flows in the wheelspace cavity and the aerodynamic effects of vane trailing edge flow [20,21], a public study on ingestion and rim cavity cooling performance in which both cooling flows are present together has not been completed.…”
Section: Literature Reviewmentioning
confidence: 99%
“…The spanwise inclination may be adverse to the aerodynamic performance of cooled turbine blades. Aminossadati and Mee 19 investigated the effects of TE injection with different spanwise inclination angles on aerodynamic performances of a blade in a two-dimensional low-speed cascade of turbine stator vanes.…”
Section: Introductionmentioning
confidence: 99%