• Title/Summary/Keyword: 천해 edge wave

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Comparison of Edge Wave Normal Modes (Edge Wave 고유파형의 비교)

  • Seo, Seung Nam
    • Journal of Korean Society of Coastal and Ocean Engineers
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    • v.25 no.5
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    • pp.285-290
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    • 2013
  • Both full linear and shallow water edge waves are compared to get a better understanding of edge wave behavior. By using method of separation of variables, we are able to get solution of full linear edge wave presented by Ursell (1952) without derivation. The shallow water edge waves show dispersive features despite being derived from shallow water equations. When bottom slope is mild enough, shallow water edge wave tends to linear edge wave and has some advantages of manipulation. Solution of edge wave generated by a moving landslide of Gaussian shape is constructed by an expansion of shallow water normal modes. Numerical results are presented and discussed on their main features.

Analysis on the Characteristics of the group-bounded long wave (파군에 따른 장주기파의 거동특성 해석)

  • 이철응;이길성;편종근
    • Proceedings of the Korean Society of Coastal and Ocean Engineers Conference
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    • 1993.07a
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    • pp.130-136
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    • 1993
  • 단주기파군에 의하여 발생되는 장주기파를 나타내는 용어로 surf-beats, edge파 그리고 평균수위강하(set-down 또는 group bounded long wave)등이 사용되어지고 있다. 이들의 발생성격에 대한 물리적 특성으로, surf-beats와 edge파는 일반적으로 천해역에서 발생하는 비선형간섭(쇄파특성) 및 해안선의 반사성과 관련있으며 평균수위강하는 단지 단주기파에 의하여 형성된 파군의 특성과 관련을 갖게 된다. (중략)

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