Flow Prediction in Rotating Ducts Using Coriolis-Modified Turbulence Models

[+] Author and Article Information
J. H. G. Howard

Mechanical Engineering Department, University of Waterloo, Waterloo, Ontario, Canada

S. V. Patankar

Mechanical Engineering Department, University of Minnesota, Minneapolis, Minn.

R. M. Bordynuik

University of Waterloo

J. Fluids Eng 102(4), 456-461 (Dec 01, 1980) (6 pages) doi:10.1115/1.3240725 History: Received March 26, 1979; Online October 26, 2009


A parabolic numerical analysis procedure has been used to predict the flow in a straight, radial rotating channel of rectangular cross-section, chosen as a simple model of an impeller passage. A two equation turbulence model was employed, with alternative modifications, to include the influence of Coriolis force on turbulent kinetic energy. Alternative Coriolis force terms were evaluated by comparisons in a high-aspect-ratio duct with measured velocity, wall shear stress and turbulent viscosity. Secondary velocity predictions were checked with data from a low-aspect-ratio duct where the Coriolis modification of turbulence was found less influential than the secondary flow in the modification of side wall shear stress.

Copyright © 1980 by ASME
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