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首页> 外文期刊>Coastal engineering >Radiation stress and low-frequency energy balance within the surf zone: A numerical approach
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Radiation stress and low-frequency energy balance within the surf zone: A numerical approach

机译：海浪区域内的辐射应力和低频能量平衡：一种数值方法

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摘要

This paper evaluates the energy transfer between short and long waves resulting from nonlinear interactions of the radiation stress with the low-frequency motion in the nearshore. Shoaling and breaking of irregular waves over different slopes are investigated by means of numerical simulations with the Reynolds Averaged Navier-Stokes model IH-2VOF. The low-frequency energy flux is enhanced up to the outer surf zone where dissipation starts. Seaward of the inner surf zone, the rate of work done by the radiation stress roughly balances the low-frequency energy flux gradients, indicating that nonlinear interactions with sea-swell waves are responsible for both the enhancement and the damping of low-frequency energy. In the inner surf zone, interactions between short- and long-wave fields are weak and the low-frequency energy loss appears to be largely due to self-self nonlinear interactions.
机译：本文评估了辐射应力与近岸低频运动的非线性相互作用导致的短波与长波之间的能量转移。通过使用雷诺平均Navier-Stokes模型IH-2VOF进行数值模拟，研究了不同坡度上的不规则波的浅滩破坏。低频能量通量一直增强到开始耗散的外部冲浪区。内海浪带向海，辐射应力完成的工作速率大致平衡了低频能量通量梯度，这表明与海浪波动的非线性相互作用是低频能量增强和衰减的原因。在内部冲浪区，短波和长波场之间的相互作用较弱，低频能量损失似乎主要归因于自-自非线性相互作用。

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  • 来源
    《Coastal engineering》 |2012年第2012期|p.44-55|共12页
  • 作者

    Andrea Ruju; Javier L Lara; Inigo J. Losada;

  • 作者单位

    Environmental Hydraulics Institute 'IH Cantabria', Universidad de Cantabria, C/lsabel Torres 15 Parque Cientifico y Tecnologico de Cantabria, 39011 Santander, Spain;

    Environmental Hydraulics Institute 'IH Cantabria', Universidad de Cantabria, C/lsabel Torres 15 Parque Cientifico y Tecnologico de Cantabria, 39011 Santander, Spain;

    Environmental Hydraulics Institute 'IH Cantabria', Universidad de Cantabria, C/lsabel Torres 15 Parque Cientifico y Tecnologico de Cantabria, 39011 Santander, Spain;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    radiation stress; energy balance; long wave dissipation; surf zone; RANS;

    机译：辐射应力能量平衡;长波耗散;冲浪区兰斯;

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