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Record Details

Record 25 of 19104
Wall shear stress measurement in blade end-wall corner region
Author and Affiliation:
Bhargava, R.(City Coll. of the City Univ. of New York, NY, United States)
Raj, R.(City College, New York, United States)
Boldman, D. R.(NASA Lewis Research Center, Cleveland, OH, United States)
Abstract: The magnitude and the direction of wall shear stress and surface pressure in the blade end-wall corner region were investigated. The measurements were obtained on a specially designed Preston tube, the tip of which could be concentrically rotated about its axis of rotation at the measurement location. The magnitude of wall shear stress in the vicinity of the corner was observed to increase significantly (170 percent) compared to its far-upstream value; the increase was consistently higher on the blade surface compared to the value on the plate surface of the blade end-wall corner. On both surfaces in the blade end-wall corner, the variation of the wall shear stress direction was found to be more predominant in the vicinity of the blade leading-edge location. The trend of the measured wall shear stress direction showed good agreement with the limiting streamline directions obtained from the flow visualization studies.
Publication Date: May 01, 1987
Document ID:
19880023862
(Acquired Nov 28, 1995)
Accession Number: 88A11089
Subject Category: FLUID MECHANICS AND HEAT TRANSFER
Report/Patent Number: ASME PAPER 87-GT-181
Document Type: Preprint
Publisher Information: United States
Financial Sponsor: NASA; United States
Organization Source: City Coll. of the City Univ. of New York; NY, United States
NASA Lewis Research Center; Cleveland, OH, United States
Description: 12p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: CORNER FLOW; PRESSURE MEASUREMENT; SHEAR STRESS; SUBSONIC WIND TUNNELS; WALL FLOW; WIND TUNNEL TESTS; AIRFOILS; FLAT PLATES; FLOW VISUALIZATION; LEADING EDGES; STATIC PRESSURE
Imprint And Other Notes: ASME, International Gas Turbine Conference and Exhibition, 32nd, Anaheim, CA, May 31-June 4, 1987. 12 p.
Availability Source: Other Sources
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