• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Aquatic Sciences >Direct effects of dominant winds on residence and travel times in the wide and open lacustrine embayment: Vidy Bay (Lake Geneva, Switzerland)
【24h】

Direct effects of dominant winds on residence and travel times in the wide and open lacustrine embayment: Vidy Bay (Lake Geneva, Switzerland)

机译：主导风对宽阔和开放湖泊湖道中的停留和飞行时间的直接影响：维迪湾（瑞士日内瓦湖）

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Numerical simulations were carried out to determine the residence (or flushing) time of water in Vidy Bay (north shore of Lake Geneva) for different meteorological conditions. A hydrodynamic model (Delft3D-FLOW) was applied to simulate the flow field in the embayment during 2010 and January 2011. Using these results, particle tracking was applied to estimate transport of wastewater effluent discharged into the embayment. The model predictions compared well with published field measurements of dissolved species (as given by electrical conductivity profiles) within the wastewater. The pelagic boundary of the embayment was defined by the largest within-bay gyre. Based on this definition, particle tracking was used to quantify the residence time under dominant wind conditions. Similarly, particle tracking was used to determine the travel time (i.e., time to exit the embayment) for each of Vidy Bay's three inflows (stream, stormwater and wastewater effluent). Although the wind field over the lake is variable, current patterns in the embayment can be simulated using the hydrodynamic model forced by a spatially uniform wind field. For a given wind speed, the main factor influencing residence and travel times is the wind angle. The presence of gyres leads to high mean residence times with large variability. As the wind direction becomes more aligned with the shoreline (i.e., with increasing westerly or easterly components), longshore currents dominate. These disrupt gyre formation and markedly reduce the mean and variability of embayment residence time. The numerical model was utilized to assess the potential for plume movement (in plan) from above the wastewater effluent outfall towards one of Lausanne's drinking water intakes. In the most direct pathway, westward longshore currents can move water from the embayment to the water column above the intake location.
机译：进行了数值模拟，以确定不同气象条件下水在维迪湾（日内瓦湖北岸）的停留（或冲洗）时间。应用流体力学模型（Delft3D-FLOW）来模拟2010年和2011年1月在浮标间的流场。利用这些结果，应用粒子跟踪来估算排放到浮标内的废水的传输。该模型预测与已公布的废水中溶解物（通过电导率分布图）的现场测量结果进行了比较。海湾的浮游边界由最大的海湾内回旋角定义。基于此定义，使用粒子跟踪来量化主风条件下的停留时间。类似地，使用粒子跟踪来确定Vidy Bay的三种入水（溪流，雨水和废水）中的每一种的传播时间（即离开浮标的时间）。尽管湖上的风场是可变的，但可以使用由空间均匀的风场强迫的水动力模型来模拟流域中的电流模式。对于给定的风速，影响停留时间和行驶时间的主要因素是风角。回转的存在导致高的平均停留时间和较大的变异性。随着风向变得与海岸线更加一致（即随着西风或东风分量的增加），近岸海流占主导地位。这些扰动了回旋管的形成，并显着减少了滞留停留时间的平均值和变异性。该数值模型被用来评估（从计划中）从废水排放口上方向洛桑饮用水入口之一的羽流运动的可能性（按计划）。在最直接的途径中，向西的近岸水流可以将水从浮选区移至进水口上方的水柱。

著录项

  • 来源
    《Aquatic Sciences》 |2014年第1期|S59-S71|共13页
  • 作者

    A. M. Razmi; D. A. Barry; U. Lemmin; F. Bonvin; T. Kohn; R. Bakhtyar;

  • 作者单位

    Institut d'ingenierie de l'environnement, Faculte de l'environnement naturel, architectural et construit (ENAC), Ecole polytechnique federale de Lausanne (EPFL), Station 2, 1015 Lausanne, Switzerland;

    Institut d'ingenierie de l'environnement, Faculte de l'environnement naturel, architectural et construit (ENAC), Ecole polytechnique federale de Lausanne (EPFL), Station 2, 1015 Lausanne, Switzerland;

    Institut d'ingenierie de l'environnement, Faculte de l'environnement naturel, architectural et construit (ENAC), Ecole polytechnique federale de Lausanne (EPFL), Station 2, 1015 Lausanne, Switzerland;

    Institut d'ingenierie de l'environnement, Faculte de l'environnement naturel, architectural et construit (ENAC), Ecole polytechnique federale de Lausanne (EPFL), Station 2, 1015 Lausanne, Switzerland;

    Institut d'ingenierie de l'environnement, Faculte de l'environnement naturel, architectural et construit (ENAC), Ecole polytechnique federale de Lausanne (EPFL), Station 2, 1015 Lausanne, Switzerland;

    Institut d'ingenierie de l'environnement, Faculte de l'environnement naturel, architectural et construit (ENAC), Ecole polytechnique federale de Lausanne (EPFL), Station 2, 1015 Lausanne, Switzerland,Department of Environmental Sciences and Engineering, The University of North Carolina, Chapel Hill, NC 27599-7431, USA,Coastal and Hydraulics Laboratory, US Army Engineer Research and Development Center, Vicksburg, MS 39180-6133, USA;

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

    Delft3D; Hydrodynamics; Particle tracking; Gyre; Dominant winds; Wastewater effluent;

    机译：Delft3D;流体力学粒子跟踪;回转主导风;废水排放;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号