Science and Technology Production
Article
Authorship
COBELLI, PABLO JAVIER
;
PAGNEUX, VINCENT
;
MAUREL, AGNES
;
PETITJEANS, PHILIPPE
Date
2009
Publishing House and Editing Place
EPL ASSOCIATION
Magazine
EUROPHYSICS LETTERS,
vol. 88
(pp. 2000601-2000606)
EPL ASSOCIATION
Summary
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SIGEVA
The fluid around a free surface piercing circular cylinder in a long narrow wave tank can exhibit a local oscillation that does not propagate down the channel but is confined to the vicinity of the cylinder. This is a manifestation of the so-called trapped modes, bound states in the continuum occurring in many situations in physics. In this letter, using Fourier Transform Profilometry, fully space time resolved measurements for the free surface deformation are obtained. The scattering character...
The fluid around a free surface piercing circular cylinder in a long narrow wave tank can exhibit a local oscillation that does not propagate down the channel but is confined to the vicinity of the cylinder. This is a manifestation of the so-called trapped modes, bound states in the continuum occurring in many situations in physics. In this letter, using Fourier Transform Profilometry, fully space time resolved measurements for the free surface deformation are obtained. The scattering characteristics of the cylinder and consequently the behavior of the trapped-mode frequency are determined.
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Key Words
WAVE-STRUCTURE INTERACTIONSSTANDING WAVES, RESONANCE, NORMAL MODESSOLUTIONS OF WAVE EQUATION: BOUND STATES