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2009 Fiscal Year Final Research Report

Parameterization for turbulence induced flocculation of SPM based on directly-measured turbulent energy dissipation rate in coastal region

Research Project

  • PDF
Project/Area Number 20760333
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Hydraulic engineering
Research InstitutionKyushu University

Principal Investigator

SAITA Tomonori  Kyushu University, 大学院・工学研究院, 学術研究員 (80432863)

Project Period (FY) 2008 – 2009
Keywords懸濁物質輸送 / フロキュレーション / フロック径 / 沈降速度 / 乱流構造 / 乱流エネルギー散逸率 / 潮流 / 有明海
Research Abstract

In this study, a field observation on a relation between turbulent kinetic energy dissipation rates ε and floc size was carried out in Ariake Bay by using a microstructure profiler and a waterproof microscope. As a result of the observation, ε at flood and ebb tide were higher than that at slack tide. On the other hand, the observed floc diameters were around 10-15μm and had not changed drastically for a tidal period. In addition, floc diameters estimated by the model proposed by Winterwerp (2002) roughly corresponded to the observed values.

  • Research Products

    (4 results)

All 2010 2009

All Presentation (4 results)

  • [Presentation] 密度成層場における乱流エネルギー散逸率の現地観測2010

    • Author(s)
      志岐慎介
    • Organizer
      平成21年度土木学会西部支部研究発表会
    • Place of Presentation
      崇城大学池田キャンパス
    • Year and Date
      2010-03-06
  • [Presentation] 有明海における夏季小潮期の乱流エネルギー散逸率の時空間変動2010

    • Author(s)
      田井明
    • Organizer
      平成21年度土木学会西部支部研究発表会
    • Place of Presentation
      崇城大学池田キャンパス
    • Year and Date
      2010-03-06
  • [Presentation] 有明海における一潮汐間の乱流エネルギー散逸率の変動2009

    • Author(s)
      志岐慎介
    • Organizer
      平成20年度土木学会西部支部研究発表会
    • Place of Presentation
      九州大学伊都キャンパス
    • Year and Date
      2009-03-07
  • [Presentation] 有明海におけるフロック径と乱流エネルギー散逸率の同時観測2009

    • Author(s)
      紺野晶裕
    • Organizer
      平成20年度土木学会西部支部研究発表会
    • Place of Presentation
      九州大学伊都キャンパス
    • Year and Date
      2009-03-07

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Published: 2011-06-18   Modified: 2016-04-21  

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