| 分层密度流体的边界波动在不透水刚性底床的运动行为——Ⅰ造波条件对波型演化的关系 |
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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——Ⅰ造波条件对波型演化的关系[J].水科学进展,2007,18(4):570-574. |
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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： | 在一座二维内波实验水槽(12 m×0.7 m×0.5 m)、于总水深H等于40 cm的条件下,以淡、盐水依密度分层布置的两层流体,从事孤立内波生成的研究。内波水槽内的上下层水深比H1/H2、造波区位能差(η0)、上下层的密度比皆为实验主要的控制变因。在各种不同实验条件配合之下,试验及比较以上变因对内波振幅能量及相关传递系数的影响,进而产生几种不同的波动特性:上举型孤立内波、下沉形孤立内波、非周期性的重力内波等,且不同形式的重力内波需要配合固定的造波条件使能达成。
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| 关 键 词： | 断面实验水槽 内波运动 密度分层 内波传递 波形转换 |
| 文章编号： | 1001-6791（2007）04-0570-05 |
| 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, 1, Wave evolution related to various energy conditions |
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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, 1, Wave evolution related to various energy conditions[J].Advances in Water Science,2007,18(4):570-574. |
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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: | The wave flume used in this laboratory experiment is 12 meter long with a cross-section 0.5 m wide and 0.7m in height.The Experiments were conducted to investigate the generation of internal solitary waves (ISW) in a two-layered free surface fluid system.The experimental control conditions include the thickness ratio between the upper and lower fluid H1/H2,step depth η0,and density ratio.The internal waves are thus generated with various waveform types Given positive potential energies,an elevation-type ISW is followed by an anticlockwise overturning motion at the interface; on the other hand,an ISW of depression-type is generated by clockwise motion.The inappropriate configuration in the flume will produce wave fluctuations without period. |
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| Keywords: | water flume wave motion stratification wave propagation conversion |
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