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首页> 外文期刊>Journal of hydro-environment research >Modelling algae transport in coastal areas with a shallow water equation model including wave effects
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Modelling algae transport in coastal areas with a shallow water equation model including wave effects

机译：利用包括波浪效应的浅水方程模型对沿海地区的藻类运输进行建模

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摘要

The transport of algae in the marine environment is becoming a major issue for integrated sustainable coastal management and can be nowadays investigated through numerical modelling. The Shallow Water Equations are a suitable tool for this purpose. In the framework of the present study, they are used to perform predictions of algae transport in the vicinity of a harbour, combined to a 3rd generation spectral wave model to take account of near-shore currents induced by wave breaking in the surf zone. The simulated paths of algae have been proved to be very sensitive to the effects of those wave-induced currents and exhibit a behaviour in acceptable agreement with on site observations. In particular, the effects of waves on currents is required to qualitatively predict the large recirculation pattern observed in the vicinity of one of the dykes of the harbour. This recirculation is suspected to be one of the major mechanisms of algae dynamics in this area of the coast. Stochastic (random-walk) diffusion was also tested to account for local dispersion of algae due to large turbulent eddies.
机译：藻类在海洋环境中的运输正在成为可持续沿海综合管理的一个主要问题，如今可以通过数值模型进行研究。浅水方程式是用于此目的的合适工具。在本研究的框架中，它们被用来进行海藻在港口附近的运输的预测，并结合到第三代谱波模型中，以考虑由冲浪区中的波浪破裂引起的近岸海流。事实证明，模拟的藻类路径对这些波感应电流的影响非常敏感，并且表现出与现场观察结果一致的行为。特别地，需要波浪对水流的影响，以定性地预测在海堤之一的堤附近附近观察到的大的再循环模式。这种再循环被认为是该海岸地区藻类动力学的主要机制之一。还测试了随机（随机游走）扩散，以解释由于大涡流引起的藻类局部扩散。

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  • 来源
    《Journal of hydro-environment research》 |2010年第4期|215-223|共9页
  • 作者

    R. Issa; D. Rouge; M. Benoit; D. Violeau; A. Joly;

  • 作者单位

    EDF R&D, National Hydraulics and Environment Laboratory, Chatou, France;

    EDF R&D, National Hydraulics and Environment Laboratory, Chatou, France;

    EDF R&D, National Hydraulics and Environment Laboratory, Chatou, France Saint-Venant Laboratory for Hydraulics, Universite Paris-Est, Joint research unit EDF R&D, CETMEF, Ecole des Ponts, France;

    EDF R&D, National Hydraulics and Environment Laboratory, Chatou, France Saint-Venant Laboratory for Hydraulics, Universite Paris-Est, Joint research unit EDF R&D, CETMEF, Ecole des Ponts, France;

    Saint-Venant Laboratory for Hydraulics, Universite Paris-Est, Joint research unit EDF R&D, CETMEF, Ecole des Ponts, France;

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  • 正文语种 eng
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  • 关键词

    algal bloom; numerical simulation; shallow water equations; spectral wave model; stochastic turbulent diffusion;

    机译：藻华数值模拟浅水方程;频谱波模型随机湍流扩散;

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