Journal
IZVESTIYA ATMOSPHERIC AND OCEANIC PHYSICS
Volume 52, Issue 3, Pages 239-246Publisher
MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1134/S000143381602002X
Keywords
self-oscillations; dissipation rate; kinetic energy; linear law
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In this paper, a Reynolds number increase transition from self-oscillations close to single-frequency ones to the temporally chaotic regime in the flow in a cylindrical channel driven by a spatially periodic force with four half-periods is experimentally investigated. The parameter epsilon proportional to the mean rate of the kinetic energy dissipation in unit mass per unit time associated with perturbations in the fluid is used as a basic characteristic of self-oscillations. The Reynolds number dependence epsilon(Re) for single frequency self-oscillations is considered theoretically.
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