Three-dimensional fluid flow phenomena in the blade end wall corner regionFlow visualization, static and total pressure measurements, and mean velocity profile measurements with a single-sensor inclined hot wire probe, are used in a study of three-dimensional flow at a turbine blade end wall corner region for six critical axial stations along the blade chord. Three vortices are identified: (1) a horseshoe vortex near the leading edge; (2) a corner eddy between the horseshoe vortex and the corner; and (3) a vortex at the rear portion of the corner due to the corner eddy's secondary flow. Attention is given to the relative size and rate-of-spread of the vortices in the streamwise direction.
Document ID
19860063491
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Hazarika, B. K. (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)