書誌事項
- タイトル別名
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- CORIOLIS EFFECT ON A BUOYANCY DRIVEN CURRENT
- ミツドリュウ ニ オケル コリオリ コウカ ニカンスルケンキュウ
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説明
To parameterize Coriolis effect on density current, governing equations are nondimensionalizedby selecting the velocity and the buoyancy scales which are usual in the non-rotating system.Among the dimensionless parameters, Ro=A1/3L-4/3f-1 and Ev=νvf-1H2 are considered to bemost important in a natural basin, where A is the total buoyancy flux into the basin, L width ofthe basin, f Coriolis parameter, νv vertical eddy viscosity coefficient, H water depth. The de-pendence of phenomenon on these two parameters is exermined experimentally and numericallyunder a simplified condition.Longitudinal convection is deflected from the basic one without rotation as Rv decreases, andthe direction of convection and that of equi-picnal lines crosses with a small angle prescribed by asmall value of Ev. By the effect of rotation, the longitudinal dispersion of buoyancy is weakened, resulting in a horizontal large gradient of buoyancy.The density current in southern part of Lake Biwa was also simulated. The Coriolis effect on itis found to be a restricting factor for that current.
収録刊行物
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- 京都大学防災研究所年報. B
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京都大学防災研究所年報. B 23 (B-2), 351-371, 1980-04-01
京都大学防災研究所
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詳細情報 詳細情報について
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- CRID
- 1050001202298006400
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- NII論文ID
- 120001098300
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- NII書誌ID
- AN00027784
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- ISSN
- 0386412X
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- HANDLE
- 2433/70351
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- NDL書誌ID
- 2177246
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- 本文言語コード
- ja
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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
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