NDLI: Effects of Aeroderivative Combustor Turbulence on Endwall Heat Transfer Distributions Acquired in a Linear Vane Cascade

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Ames, Forrest E. Barbot, Pierre A. Wang, Chao
Copyright Year	2003
Abstract	Vane endwall heat transfer distributions are documented for a mock aeroderivative combustion system and for a low turbulence condition in a large-scale low speed linear cascade facility. Inlet turbulence levels range from below 0.7% for the low turbulence condition to 14% for the mock combustor system. Stanton number contours are presented at both turbulence conditions for Reynolds numbers based on true chord length and exit conditions ranging from 500,000 to 2,000,000. Low turbulence endwall heat transfer shows the influence of the complex three-dimensional flow field, while the effects of individual vortex systems are less evident for the high turbulence cases. Turbulent scale has been documented for the high turbulence case. Inlet boundary layers are relatively thin for the low turbulence case, while inlet flow approximates a nonequilibrium or high turbulence channel flow for the mock combustor case. Inlet boundary layer parameters are presented across the inlet passage for the three Reynolds numbers and both the low turbulence and mock combustor inlet cases. Both midspan and 95% span pressure contours are included. This research provides a well-documented database taken across a range of Reynolds numbers and turbulence conditions for assessment of endwall heat transfer predictive capabilities.
Starting Page	210
Ending Page	220
Page Count	11
File Format	PDF
ISSN	0889504X
e-ISSN	15288900
Journal	Journal of Turbomachinery
Volume Number	125
Issue Number	2
DOI	10.1115/1.1559897
Language	English
Publisher	The American Society of Mechanical Engineers
Publisher Date	2003-04-23
Access Restriction	Subscribed
Subject Keyword	Boundary layers Cascades (Fluid dynamics) Chords (Trusses) Combustion chambers Flow (Dynamics) Heat transfer Pressure Reynolds number Turbulence Vortices
Content Type	Text
Resource Type	Article
Subject	Mechanical Engineering

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