Parametrically excited internal wave breathers and kinks in liquids  

作　　者：陈伟中 魏荣爵 王本仁 

机构地区：[1]Institute of Acoustics and Laborotary of Modern Acoustics, Nanjing University, Nanjing 210093, China [2]Institute of Modern Physics, Ninbo Normal College, Ningbo 315211, China

出　　处：《Science China Mathematics》1996年第3期309-316,共8页中国科学：数学（英文版）

基　　金：Project supported by the National Basic Research Project of Nonlinear Science;Ningbo Youngster Science Foundation.

摘　　要：In parametrically excited Faraday experiment the non-propagating solitons-breathers, kinksand breather pairs-have been observed at the interface of two insoluble liquids with different densities.Phenomena observed at the interface are similar to those on the surface, except that the eigenfrequencies are remarkably red-shifted, and the wave forms are flatter and less stable due to the presence of the upper liquid. A nonlinear Schrodinger equation with damping and drive terms has been derived to explain the new observations. Both experiment and theory show that the free surface wave is a special case of the interface wave.In parametrically excited Faraday experiment the non-propagating solitons-breathers, kinksand breather pairs-have been observed at the interface of two insoluble liquids with different densities.Phenomena observed at the interface are similar to those on the surface, except that the eigenfrequencies are remarkably red-shifted, and the wave forms are flatter and less stable due to the presence of the upper liquid. A nonlinear Schrodinger equation with damping and drive terms has been derived to explain the new observations. Both experiment and theory show that the free surface wave is a special case of the interface wave.

关 键 词：internal wave BREATHER KINK nonlinear SCHRODINGER equation. 

分 类 号：O351[理学—流体力学]