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Three-dimensional structures and turbulence closure of the wake developing in a wall shear layerThe turbulent wake interacting with the rotating wall shear layer is investigated analytically and numerically. The turbulent wakes of the rotating blades in a compressor which are interacting with the rotating hub-wall boundary layer are analyzed. A modified version of the closure model of the pressure-strain correlation term in the Reynolds stress transport equation is developed to predict the effect of rotation, which is appreciable for the present flow because the thick hub-wall boundary layer is interacting with the rotor wake. It is noted that the Poisson type equation for the pressure-strain correlation has an extra rotation term when the entire flow field is rotating. This extra rotation term is modeled to accommodate the effect of rotation. In addition, the standard correction for the wall effect is incorporated for the utilized Reynolds stress closure model. The rotation-modified Reynolds stress closure model is used to predict the present flow, and the predictions are compared with the experimental data. The experimental data reveal that the characteristics of the three-dimensional turbulent wake interacting with the wall shear layer are considerably altered by the effects of the wall and the rotation. These features are predicted with good accuracy by the turbulence closure model developed.
Document ID
19810054611
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Hah, C.
(Pennsylvania State University University Park, PA, United States)
Date Acquired
August 11, 2013
Publication Date
June 1, 1981
Subject Category
Aerodynamics
Report/Patent Number
AIAA PAPER 81-1269
Meeting Information
Meeting: Fluid and Plasma Dynamics Conference
Location: Palo Alto, CA
Start Date: June 23, 1981
End Date: June 25, 1981
Sponsors: American Institute of Aeronautics and Astronautics
Accession Number
81A39015
Funding Number(s)
CONTRACT_GRANT: NSG-3266
Distribution Limits
Public
Copyright
Other

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