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Comparison of visualized turbine endwall secondary flows and measured heat transfer patternsVarious flow visualization techniques were used to define the seondary flows near the endwall in a large heat transfer data. A comparison of the visualized flow patterns and the measured Stanton number distribution was made for cases where the inlet Reynolds number and exit Mach number were matched. Flows were visualized by using neutrally buoyant helium-filled soap bubbles, by using smoke from oil soaked cigars, and by a few techniques using permanent marker pen ink dots and synthetic wintergreen oil. Details of the horseshoe vortex and secondary flows can be directly compared with heat transfer distribution. Near the cascade entrance there is an obvious correlation between the two sets of data, but well into the passage the effect of secondary flow is not as obvious. Previously announced in STAR as N83-14435
Document ID
19840050916
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Gaugler, R. E.
(NASA Lewis Research Center Cleveland, OH, United States)
Russell, L. M.
(NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
August 12, 2013
Publication Date
January 1, 1984
Publication Information
Publication: ASME, Transactions, Journal of Engineering for Gas Turbines and Power
Volume: 106
ISSN: 0022-0825
Subject Category
Fluid Mechanics And Heat Transfer
Report/Patent Number
ASME PAPER 83-GT-83
Accession Number
84A33703
Distribution Limits
Public
Copyright
Other

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