NDLI: Measurement and Prediction of Heat Transfer Distributions on an Aft-Loaded Vane Subjected to the Influence of Catalytic and Dry Low NOx Combustor Turbulence

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Ames, F. E. Argenziano, M. Wang, C.
Copyright Year	2004
Abstract	Aft-loaded vane designs can have an impact on surface heat transfer distributions by accelerating boundary layers for a greater portion of the suction surface. New combustion systems developed for low emissions have produced substantial changes to the characteristics of inlet turbulence entering nozzle guide vanes. This paper documents heat transfer rates on an aft-loaded vane subject to turbulence generated by mock combustion configurations representative of recently developed catalytic and dry low NOx (DLN) combustors. Four different inlet turbulence conditions with levels ranging up to 21% are documented in this study and vane heat transfer rates are acquired at vane exit chord Reynolds numbers ranging from 500,000 to 2,000,000. Heat transfer distributions show the influence of the turbulence conditions on heat transfer augmentation and transition. Cascade aerodynamics are well documented and match pressure distributions predicted by a commercial computational fluid dynamics (CFD) code for this large-scale low-speed facility. The aft-loaded vane pressure distribution exhibits a minimum value at about 50% arc on the suction surface. This comprehensive vane heat transfer data set is expected to represent an excellent test case for vane heat transfer predictive methods. Predictive comparisons are shown based on a two-dimensional boundary layer code using an algebraic turbulence model for augmentation as well as a transition model.
Starting Page	139
Ending Page	149
Page Count	11
File Format	PDF
ISSN	0889504X
e-ISSN	15288900
Journal	Journal of Turbomachinery
Volume Number	126
Issue Number	1
DOI	10.1115/1.1645867
Language	English
Publisher	The American Society of Mechanical Engineers
Publisher Date	2004-03-26
Access Restriction	Subscribed
Subject Keyword	Boundary layers Cascades (Fluid dynamics) Chords (Trusses) Combustion chambers Heat transfer Pressure Reynolds number Suction Turbulence
Content Type	Text
Resource Type	Article
Subject	Mechanical Engineering

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Measurement and Prediction of Heat Transfer Distributions on an Aft Loaded Vane Subjected to the Influence of Catalytic and Dry Low NOx Combustor Turbulence

Effects of Catalytic and Dry Low NOx Combustor Turbulence on Endwall Heat Transfer Distributions

Measurement and Prediction of the Influence of Catalytic and Dry Low NOx Combustor Turbulence on Vane Surface Heat Transfer

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Measurement and Prediction of the Influence of Catalytic and Dry Low NOx Combustor Turbulence on Vane Surface Heat Transfer

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