Nonlinear oblique interaction of large amplitude internal solitary waves

Keisuke Nakayama, Taro Kakinuma, Hidekazu Tsuji, Masayuki Oikawa

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

抄録

Solitary waves are typical nonlinear long waves in the ocean. The two-dimensional interaction of solitary waves has been shown to be essentially different from the one-dimensional case and can be related to generation of large amplitude waves (including 'freak waves'). Concerning surface-water waves, Miles (1977) theoretically analyzed interaction of three solitary waves, which is called "resonant interaction" because of the relation among parameters of each wave. Weakly-nonlinear numerical study (Funakoshi, 1980) and fully-nonlinear one (Tanaka, 1993) both clarified the formation of large amplitude wave due to the interaction ("stem" wave) at the wall and its dependency of incident angle. For the case of internal waves, analyses using weakly nonlinear model equations (e.g. Tsuji and Oikawa, 2006) suggest also qualitatively similar results. Therefore, the aim of this study is to investigate the strongly nonlinear interaction of internal solitary waves; especially whether the resonant behavior is found or not. As a result, it is found that the amplified internal wave amplitude becomes about three times as much as the original amplitude. In contrast, a "stem" is not found to occur when the incident wave angle is more than the critical angle, which has been demonstrated in the previous studies.

本文言語英語
ホスト出版物のタイトルProceedings of the 33rd International Conference on Coastal Engineering 2012, ICCE 2012
出版社American Society of Civil Engineers (ASCE)
ISBN(印刷版)9780989661119
DOI
出版ステータス出版済み - 2012
外部発表はい
イベント33rd International Conference on Coastal Engineering 2012, ICCE 2012 - Santander, スペイン
継続期間: 7 1 20127 6 2012

出版物シリーズ

名前Proceedings of the Coastal Engineering Conference
ISSN(印刷版)0161-3782

その他

その他33rd International Conference on Coastal Engineering 2012, ICCE 2012
Countryスペイン
CitySantander
Period7/1/127/6/12

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Ocean Engineering
  • Oceanography

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