INVESTIGADORES
COBELLI Pablo Javier
artículos
Título:
Experimental observation of trapped modes in a water wave channel
Autor/es:
COBELLI, PABLO JAVIER; PAGNEUX, VINCENT; MAUREL, AGNES; PETITJEANS, PHILIPPE
Revista:
EUROPHYSICS LETTERS
Editorial:
EPL ASSOCIATION
Referencias:
Año: 2009 vol. 88 p. 2000601 - 2000606
ISSN:
0295-5075
Resumen:
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.
