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- 片岡, 武
- 神戸大学
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- Akylas, T. R.
- マサチューセッツ工科大学
書誌事項
- タイトル別名
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- 内部重力波の斜め反射により生じる平均流について
- ナイブ ジュウリョクハ ノ ナナメ ハンシャ ニ ヨリ ショウジル ヘイキンリュウ ニ ツイテ
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Weakly nonlinear analysis is utilized to discuss the mean flow induced by the reflection of an internal gravity wave beam at a uniform rigid slope, in the case where the beam planes of constant phase meet the slope at an arbitrary direction, not necessarily parallel to the isobaths, and the flow cannot be taken as two-dimensional. Along the vertical, the Eulerian mean flow due to such an oblique reflection is equal and opposite to the Stokes drift so the Lagrangian mean flow vanishes, similar to a two-dimensional reflection. The horizontal Eulerian mean flow, however, is controlled by the mean potential vorticity (PV) and the corresponding Lagrangian mean flow is generally nonzero, in contrast to two-dimensional flow where PV identically vamishes. For an oblique reflection, furthermore, viscous dissipation can trigger generation of horizontal mean flow via irreversible production of mean PV, a phenomenon akin to streaming. This report is based on Kataoka& Akylas (2019).
収録刊行物
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- 数理解析研究所講究録
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数理解析研究所講究録 2128 90-102, 2019-09
京都大学数理解析研究所
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詳細情報
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- CRID
- 1050003824810924672
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- NII論文ID
- 120006861852
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- NII書誌ID
- AN00061013
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- ISSN
- 18802818
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- HANDLE
- 2433/252274
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- NDL書誌ID
- 030147283
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- 本文言語コード
- en
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- 資料種別
- departmental bulletin paper
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- データソース種別
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- IRDB
- NDL
- CiNii Articles