Observation of depression solitary
surface waves on a thin fluid layer
E.
Falcon1, C. Laroche1 and S. Fauve 2
1: Laboratoire de
Physique, École Normale Supérieure de Lyon,
46 allée d'Italie, 69364 Lyon cedex 07,
France
2: Laboratoire de
Physique Statistique, École Normale Supérieure,
24 rue Lhomond, 75231 Paris cedex 05, France
Reference:
Physical
Review Letters 89, 204501 (2002)
Abstract:
We report the observation of depression
solitary
surface waves on a layer of mercury when its depth is thin enough
compared
to the capillary length. These waves, as well as the well known elevation
solitary waves, are studied with a new measurement technique using
inductive
sensors. The shape of the solitary waves, their amplitude-dependent
velocity
and their damping rates by viscosity, are found in good agreement with
theoretical
predictions.
PACS.
47.35.+i,
92.10.Hm, 47.20.Ky, 68.03.Cd
PDF file
See also Press
items about: our works on depression solitary surface
waves : Phys.
Rev.
Focus, 29 Oct. 2002 & Pour La Science, Feb. 2003.
Keywords: hump solitary waves
; hole solitary waves ; focusing ; defocusing ;
non linear ; dispersion relation ; surface wave ; experiment ; solitary
hole
; KdV; Korteweg : de Vries ; Russell ; soliton ; hydrodynamic
See also other publications (in
French)