Stabilizing and Destabilizing Effects of Coriolis Force on Two-Dimensional Laminar and Turbulent Boundary Layers

[+] Author and Article Information
H. Koyama

Department of Mechanical Engineering, Tokyo Denki University, Tokyo, Japan

S. Masuda, I. Ariga

Department of Mechanical Engineering, Keio University, Yokohama, Japan

I. Watanabe

Department of Mechanical Engineering, College of Engineering, Kanto-Gakuin University, Yokohama, Japan

J. Eng. Power 101(1), 23-29 (Jan 01, 1979) (7 pages) doi:10.1115/1.3446448 History: Received November 07, 1977; Online July 14, 2010


To investigate the effects of Coriolis force on two-dimensional laminar and turbulent boundary layers, quantitative experiments were performed. A numerical evaluation was also carried out utilizing the Monin-Oboukhov coefficient including the effect of rotation. From the experimental results, the boundary layer development was found to be promoted on the unstable side and suppressed on the stable side, in comparison with the case of zero-rotation. In the stable boundary layer, the critical Reynolds number for relaminarization was observed to increase as rotation number was decreased. Calculated results were seen to predict the stabilizing effect of Coriolis force fairly well.

Copyright © 1979 by ASME
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