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Hysteretic mode exchange in the wake of two circular cylinders in tandem

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Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/14717

Title: Hysteretic mode exchange in the wake of two circular cylinders in tandem
Authors: Tasaka, Yuji Browse this author →KAKEN DB
Kon, Seiji Browse this author
Schouveiler, Lionel Browse this author
Gal, Patrice Le Browse this author
Issue Date: Aug-2006
Publisher: American Institute of Physics
Journal Title: Physics of Fluids
Volume: 18
Start Page: 084104
Publisher DOI: 10.1063/1.2227045
Abstract: Our experimental study is devoted to the analysis of the flow past two tandem circular cylinders near the vortex shedding threshold. A recent bidimensional numerical analysis of this flow [Mizushima and Suehiro, Phys. Fluids 17, 104107 (2005)] has predicted that the bifurcation diagram should become complex in the vicinity of the instability threshold. Subcritical and saddle node bifurcations that lead to hysteretic exchanges between two different modes of vortex shedding were detected for particular distances of separation of the cylinders. We present here visualizations and velocity measurements of this flow in a water channel that prove the robustness of the complexity of the bifurcation diagram in real flows. ©2006 American Institute of Physics
Rights: Copyright © 2006 American Institute of Physics
Relation: http://pof.aip.org/pof/
Type: article
URI: http://hdl.handle.net/2115/14717
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 田坂 裕司

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