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An advanced experimental investigation of quasi-two-dimensional shear flow

Published online by Cambridge University Press:  26 April 2006

F. V. Dolzhanskii
Affiliation:
Institute of Atmospheric Physics, Russian Academy of Sciences, Pyzhevsky 3, 109017 Moscow, Russia
V. A. Krymov
Affiliation:
Institute of Atmospheric Physics, Russian Academy of Sciences, Pyzhevsky 3, 109017 Moscow, Russia
D. Yu. Manin
Affiliation:
Institute of Atmospheric Physics, Russian Academy of Sciences, Pyzhevsky 3, 109017 Moscow, Russia

Abstract

Forced shear flows in a thin layer of an incompressible viscous fluid are studied experimentally. Streak photographs are used to obtain the stream function of vortical flow patterns arising after the primary shear flow loses stability. Various flow characteristics are determined and results are compared to the stability theory of quasi-two-dimensional flows. The applicability of the quasi-two-dimensional approximation is directly verified and the possibility of reconstruction of the driving force from the secondary flow pattern is demonstrated.

Type
Research Article
Copyright
© 1992 Cambridge University Press

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