Observation of interactions between impurities and hydrodynamics solitons

We have experimentally investigated interactions between impurities and hydrodynamic solitons in a shallow water trough subject to vertical vibration. The impurities are minor convex and concave defects located on the bottom of the trough, slightly varying the water depth. The experiments show that...

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Bibliographic Details
Published inChinese science bulletin Vol. 49; no. 13; pp. 1338 - 1341
Main Author L, Lei
Format Journal Article
LanguageEnglish
Published Beijing Springer Nature B.V 2004
State Key Laboratory of Modern Acoustics and Institute of Acoustics, Nanjing University, Nanjing 210093, China
Subjects
Energy absorption
Frankel-Kontorova模型
Hydrodynamics
Impurities
Shallow water
Solitary waves
Water depth
水深度
流体力学孤波
相互作用
interaction
impurity
hydrodynamic solitons
Online AccessGet full text
ISSN1001-6538
2095-9273
1861-9541
2095-9281
DOI10.1360/04ww0007

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Summary:We have experimentally investigated interactions between impurities and hydrodynamic solitons in a shallow water trough subject to vertical vibration. The impurities are minor convex and concave defects located on the bottom of the trough, slightly varying the water depth. The experiments show that a shallow impurity will attract breathers and kinks while a deep one will repel them. These observations are consistent with the theoretical prediction proposed in the continuous Frankel-Kontorova model with impurities and can also be explained in the view of energy absorption.
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ISSN:1001-6538
2095-9273
1861-9541
2095-9281
DOI:10.1360/04ww0007