Reflection and Transmission of a Shallow-Water Soliton over a Barrier
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概要
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This paper deals with a shallow-water soliton incident upon a submerged barrier.Introducing an 'edge-layer' near the barrier, the matched-asymptotic expansionmethod is applied to derive uniformly valid solutions. Assuming Boussinesq equa-lions are valid for the shallow-water regions, two 'reduced' boundary conditions arederived from the matching conditions. This boundary-value problem is further reduc-ed to an 'initial value' problem for K-dV equations, which is solved to investigatereflection and transmission of an incident soliton. For a moderate height of the bar-rier, the soliton can pass over the barrier as if it were almost transparent. As the bar-rier becomes high, the transmitted soliton is suppressed, while the reflected wave isenhanced and evolves into one soliton with slowly decaying ripples behind.
- 社団法人日本物理学会の論文
- 1987-08-15
著者
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SUGIMOTO Nobumasa
Department of Mechanical Engineering,Faculty of Engineering Science,Osaka University
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Sugimoto Nobumasa
Department Of Mechanical Engineering Faculty Of Engineering Science Osaka University
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Kakutani Tsunehiko
Department Of Engineering Mathematics University Of Newcastle Upon Tyne:(present Address) Department
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HOSOKAWA Kazutaka
Department of Mechanical Engineering,Faculty of Engineering Science,Osaka University
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Hosokawa Kazutaka
Department Of Mechanical Engineering Faculty Of Engineering Science Osaka University
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