| 分层密度流体的边界波动在不透水刚性底床的运动行为——Ⅱ分层条件对传动波型的影响 |
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| 引用本文： | 陈震远,许荣中,陈震武.分层密度流体的边界波动在不透水刚性底床的运动行为——Ⅱ分层条件对传动波型的影响[J].水科学进展,2007,18(4):575-579. |
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| 作者姓名： | 陈震远 许荣中 陈震武 |
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| 作者单位： | 1.永达技术学院信息管理系, 台湾, 屏东, 90941; |
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| 摘 要： | 在两层流体中,内波的特性受到许多控制变因的影响,其中包括上下层水深比、造波区位能差(位能大小)、上下层的密度比等。本文以成功大学水工试验所研发的MNDAS套装软件记录,协助数据分析及处理,研究上下层水深比对内波波型的影响,当水深比值差异越大造成的孤立波形与明显,且Kdv及修正mKdV可以合理描述内波振幅与频率之间的关系。
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| 关 键 词： | 断面实验水槽 内波运动 密度分层 Kdv及修正mKdV理论 |
| 文章编号： | 1001-6791（2007）04-0575-05 |
| 收稿时间： | 2005-10-13 |
| 修稿时间： | 2005-10-132006-01-11 |
Interfacial wave motion in an impermeable rigid channel with stratified density fluid system, 2, Waveform feature against stratification thickness ratio |
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| CHEN Chen-yuan,HSU John Rong-chung,CHEN Cheng-wu.Interfacial wave motion in an impermeable rigid channel with stratified density fluid system, 2, Waveform feature against stratification thickness ratio[J].Advances in Water Science,2007,18(4):575-579. |
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| Authors: | CHEN Chen-yuan HSU John Rong-chung CHEN Cheng-wu |
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| Affiliation: | 1.Department of Management Information System, Yung-Ta Institute of Technology and Commerce, Pingtung 90941, Taiwan, China;2.Department of Marine Environment and Engineering, Sun Yat-sen University, Kaohsiung 80424, Taiwan, China;3.Department of Logistics Management, Shu-Te University, Kaohsiung 82445, Taiwan, China |
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| Abstract: | This paper presents the results of a series of laboratory experiments on internal solitary wave in a two layer fluid system.The int ernal solitary waves (ISWs) of variable amplitudes and types were experimentally arranged from several physical variables,including the different layer thickness ratios H1/H2,the interface differences η0,and the density ratios ρ1/ρ2.The wave flume used in this experiment is 12 meter long with a cross section 0.5 m wide and 0.7m in height.Five ultrasonic probes placed at equidistance record the interface fluctuations.The data collection and processing were carried out through control software,Multi Nodes Data Acquisition System (MNDAS).This paper reports physical properties related to wave propagation.By comparing the relationship between nonlinear parameter and characteristic wave frequency,experimental results agreed well with the KdV and mKdV solutions. |
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| Keywords: | wave flume wave motion stratification KdV and modified KdV(mKdV) theories |
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