Random Dynamics from Time Series of Rotating Fluid

Sato, Yuzuru; Iima, Makoto; Tasaka, Yuji

Hokkaido University Preprint Series in Mathematics, 2011, 979, 2-5

Permalink : https://doi.org/10.14943/84126

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DOI	https://doi.org/10.14943/84126
URI	https://hdl.handle.net/2115/69786
タイトル	Random Dynamics from Time Series of Rotating Fluid
著者	Sato, Yuzuru ; Iima, Makoto ; Tasaka, Yuji
著者名 Sato, Yuzuru
著者名 Iima, Makoto
著者名 Tasaka, Yuji
言語	英語
キーワード	Surface switching
	Multiscale dynamics
	Random dynamical systems
	Noise-induced phenomena
発行日	2011-06-30
出版者	Department of Mathematics, Hokkaido University
収録物名	Hokkaido University Preprint Series in Mathematics
巻(号)	979
ページ	2-5
抄録	A random dynamics is extracted from time series of laminar-turbulent transition in rotating fluid in an open cylinder. We focus on the dynamics of the surface height in the central region and measure switching dynamics between different quasi-stationary states and intensity of underlying turbulence. Density of return map is constructed from an one dimensional map with an stochastic term from the experimental data. It is shown that the random dynamics whose noise amplitude depends on the slow variable describes the observed macroscopic features of rotating fluid in terms of noise-induced phenomena.
資源タイプ	紀要論文
出版タイプ	Version of Record