| Profile Evolution and Energy Dissipation for Internal Soliton Transmitting over Different Submarine Ridges |
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| 作者姓名： | Chen-Yuan CHEN I-Fan TSENG Hsien-Chueh Peter YANG Cheng-Wu CHEN Tsung-Hao CHEN |
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| 作者单位： | Department of Management Information System Yung-Ta Institute of Technologyand Commerce Ping Tung County 90941，Center for Marine Technology National Sun Yat-sen University Kaohsiung 80424，Department of Risk Management and Insurance National Kaohsiung FirstUniversity of Science and Technology Kaohsiung County 811 Taiwan China，Department of Logistics Management Shu-Te University Yen Chau Kaohsiung 82445 Taiwan China，Doctoral Program in Management National Kaohsiung First University of Scienceand Technology Kaohsiung County 811 Taiwan China，Taiwan China，Taiwan China |
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| 基金项目： | The work was supported by the National Science Council under Grant Nos . NSC 95-2221-E-366-001 and NSC 95-2218-E-132-001 . |
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| 摘 要： | 1 .IntroductionWhile surface solitary waves arefoundin many physical phenomena (Chouand Shih,1996 ;Chouand Quyang,1999 ;Chouet al .,2003 ; Chenet al .,2004 ; Wang,2004 ;Tsenget al .,2005) ,internal solitary waves (ISWs) have been observed since the beginning of the 20th century.In fact ,some internal waves have alarge enoughamplitudeto cause consequence onthe surface .Hence obser-vation of the oceansurface may helpto detect the activities of internal waves . We require observationsthrough…
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| 关 键 词： | 海底山脊 内孤波 障碍物 能量耗散 消波型波传播 外形演化 |
| 收稿时间： | 2006-05-20 |
| 修稿时间： | 2006-08-20 |
Profile Evolution and Energy Dissipation for Internal Soliton Transmitting over Different Submarine Ridges |
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| Chen-Yuan CHEN I-Fan TSENG Hsien-Chueh Peter YANG Cheng-Wu CHEN Tsung-Hao CHEN.Profile Evolution and Energy Dissipation for Internal Soliton Transmitting over Different Submarine Ridges[J].China Ocean Engineering,2006,20(4):585-594. |
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| Authors: | Chen-Yuan CHEN I-Fan TSENG Hsien-Chueh Peter YANG Cheng-Wu CHEN Tsung-Hao CHEN |
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| Abstract: | Fundamental experiments were carried out in a wave flume on internal solitary wave (ISW) of depression-type propagating over a submerged ridge. The seabed ridge included either triangular or semicircular shape- regarded as topographic obstacles. Influenced by the submarine ridge, the transmitted waves were found to always consist of a leading pulse (a solitary wave) followed by a dispersive wave train. The wave profile propagating over a triangular ridge was similar to that caused by a semicircular obstacle. Apparently, the smooth face of a semicircular ridge produced time lag of wave propagation. From experimental results available, the reduction in wave energy induced by a semicircular ridge was larger than that by a triangular one. The events of wave distortion, strong breaking, internal bolus, and stratification mixing happened in case that the crest of an ISW was great enough to interact with the topographic obstacle. The reduction in wave energy was induced by strong breaking, and it depended on the ridge height rather than the geometric shape of the ridge. |
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| Keywords: | ridge height wave breaking internal solitary wave energy dissipation wave flume laboratory |
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