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Title: 内湾の物質分散過程における潮流と恒流の相乗効果
Other Titles: THE COUPLING EFFECT OF THE TIDAL AND THE CONSTANT CURRENTS ON THE DISPERSION PROCESS IN THE INNER BAY
Authors: 大西, 行雄  KAKEN_name
國司, 秀明  KAKEN_name
吉松, 康公  KAKEN_name
秋友, 和典  kyouindb  KAKEN_id
Author's alias: ONISHI, Yukio
KUNISHI, Hideaki
YOSHIMATSU, Yasukimi
Issue Date: 1-Apr-1980
Publisher: 京都大学防災研究所
Journal title: 京都大学防災研究所年報. B = Disaster Prevention Research Institute Annuals. B
Volume: 23
Issue: B-2
Start page: 319
End page: 332
Abstract: It is well known that the strong tidal current at the narrow strait of the inner bay forms thetypical constant-flow vortices. To clarify the water exchange through such a strait, the couplingeffect of the constant flow and the tidal oscillatory flow is examined. It is shown that the couplingeffect yields the 8-shaped Lagrangean motion through which adjacent vortices intercommunicate, inducing water exchange between them. The exchange coefficient is large enough that it reachesthe values usually reported in field observations. The motion diffuses the sea water substantiallyin time scale longer than the tidal period. The exchange coefficient and the dispersion coefficientare both proportional to the square of the magnitude of the constant flow.
URL: http://www.dpri.kyoto-u.ac.jp/nenpo/nenpo.html
URI: http://hdl.handle.net/2433/70354
Appears in Collections:No.23 B-2

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