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The measurement of boundary layers on a compressor blade in cascade. III - Pressure surface boundary layers and the near wakeA one-component laser Doppler velocimeter (LDV) has been used to measure the two-dimensional periodic flow field about a double circular arc, compressor blade in cascade. Eleven boundary layer profiles were taken on both the pressure and suction surfaces of the blade, and two profiles were taken in the near wake. In this part of the study, the detailed LDV studies are described. The measurements indicate that the onset of transition occurs near 60 percent chord. The lack of a logarithmic region in the data measured at 97.9 percent chord indicates that transition is not complete. The thin laminar boundary layers near the leading edge led to some measurement problems, characterized by large turbulence intensities, in using the LDV.
Document ID
19880023905
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Deutsch, Steven
(Pennsylvania State Univ. State College, PA, United States)
Zierke, William C.
(Pennsylvania State University State College, United States)
Date Acquired
August 13, 2013
Publication Date
May 1, 1987
Subject Category
Fluid Mechanics And Heat Transfer
Report/Patent Number
ASME PAPER 87-GT-250
Accession Number
88A11132
Funding Number(s)
CONTRACT_GRANT: NSG-3264
Distribution Limits
Public
Copyright
Other

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