Water Surface Wave in a Trough with Periodical Topographic Bottom  

作　　者：王琪 张化 缪国庆 魏荣爵 

机构地区：[1]Institute of Acoustics, Nanjing University and Key Laboratory of Modern Acoustics (Ministry of Education), Nanjing University, Nanjing 210093

出　　处：《Chinese Physics Letters》2007年第8期2285-2288,共4页中国物理快报（英文版）

基　　金：Supported by National Natural Science Foundation of China under Grant Nos 10474045 and 10674067, and the Research Fund for the Doctoral Programme of Higher Education of China under Grant No 20040284034.

摘　　要：We present the theoretical and experimental results of water surface wave in a trough with periodical topographic bottom under parametric excitation. There are 19 steps of the same size periodically inserted into the trough. It is found that waveforms observed in the experiment are consistent with theoretical ones. Moreover, some complex and interesting phenomena arise in the experiment due to nonlinearity.We present the theoretical and experimental results of water surface wave in a trough with periodical topographic bottom under parametric excitation. There are 19 steps of the same size periodically inserted into the trough. It is found that waveforms observed in the experiment are consistent with theoretical ones. Moreover, some complex and interesting phenomena arise in the experiment due to nonlinearity.

关 键 词：BAND-GAPS 

分 类 号：O35[理学—流体力学]