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Influence of the Mass ratio on the fluid-elastic instability of a flexible cylinder in a bundle of rigid tubes

Harran, Gilles Influence of the Mass ratio on the fluid-elastic instability of a flexible cylinder in a bundle of rigid tubes. (2014) Journal of Fluids and Structures, 47. 71-85. ISSN 0889-9746

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Official URL: http://dx.doi.org/10.1016/j.jfluidstructs.2013.11.005

Abstract

Several linear lumped-parameter models were proposed in the past to identify the main mechanisms underlying the cross-flow instability of a single flexible cylinder in tube bundles. Basing on such models, we analyze the influence of the mass ratio when the cylinder vibrates in the transverse direction, without structural damping (corresponding to a zero Scruton number). For two selected mass ratios, we focus on this linear interaction plotting the poles of the fluid–structure system as a function of the reduced velocity (root locus). This asymptotic approach allows a better understanding of the combined influence of the transient fluidelastic coupling and the mass ratio.

Item Type:Article
Additional Information:Thanks to Elsevier editor. The definitive version is available at http://www.sciencedirect.com/science/article/pii/S0889974613002491
HAL Id:hal-01068986
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
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Deposited By: Johannes SCHELLER
Deposited On:31 Mar 2014 15:34

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