Quarterly of Applied Mathematics

Quarterly of Applied Mathematics

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The singular perturbation limit of an elastic structure in a rapidly flowing nearly inviscid fluid

Authors: Zvi Artstein and Marshall Slemrod
Journal: Quart. Appl. Math. 59 (2001), 543-555
MSC: Primary 34C60; Secondary 34C29, 34E15, 74F10, 76B99
DOI: https://doi.org/10.1090/qam/1848534
MathSciNet review: MR1848534
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Abstract: The effective forces that govern the vertical oscillations of an elastic structure in a horizontally flowing fluid are displayed for the limit case where fluid velocity and viscosity tend to singular limits. The derived singular perturbation model is based on available representations that model the coupled dynamics as coupled oscillators. The fast dynamics of the system does not, in general, converge on the fast time scale to a stationary point; thus, the classical singular perturbation methods are not applicable. Rather, a method based on Young measures representation of the fast oscillations, and on averaging, is employed.

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DOI: https://doi.org/10.1090/qam/1848534
Article copyright: © Copyright 2001 American Mathematical Society

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