有限水深河口域における河川水連行に及ぼすサイドゲートの影響  [in Japanese] Effects of the Side Gate on Two-Layered Density Driven Current in the River Mouth Estuary  [in Japanese]

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Abstract

湾奥に流入する河川水は湾海水を連行しながら湾表層を湾口に向かって流れる。それにともなって湾内には表層で流出、底層で流入するエスチュアリー循環が形成されて、湾の海水交換が促進される。それゆえここでは、河川水による湾の海水交換促進を目的に、河口に水路の両側から中央に向けて遮蔽板を出すサイドゲート(仮称)を備えた有限水深河口域の密度流理論式を導出し、サイドゲートによる河川水の連行促進効果について検討する。

Theoretical fomulas of narrowing the breadth of the river mouth (i.e. side gate) in the finite depth estuarywere figuredout. The enlargement effect of the entrainment rate by the side gate was also investigated. Theresults indicated that potential of the entrainment rate was related to the four parameters, i.e. the densimetricFroude number at the outlet of river water, the depth of river mouth relatives to bay, the relative opening rateof the gate and the supply of sea water at the bay mouth. Moreover, the decrease of the relative opening rate ofthe gate influenced to the increasing of l) the outlet densimetric Froude number of river water, 2) the relativebreadth of the river mouth, and 3) the potential of the entrainment rate.

Journal

  • Journal of Fisheries Engineering

    Journal of Fisheries Engineering 35(2), 113-118, 1998-12-01

    The Japanese Society of Fisheries Engineering

References:  3

Cited by:  1

Codes

  • NII Article ID (NAID)
    10008274858
  • NII NACSIS-CAT ID (NCID)
    AN10278554
  • Text Lang
    JPN
  • Article Type
    Journal Article
  • ISSN
    09167617
  • NDL Article ID
    971243
  • NDL Source Classification
    ZR26(科学技術--農林水産--水産)
  • NDL Call No.
    Z18-1327
  • Data Source
    CJP  CJPref  NDL  J-STAGE  JASI 
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