• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Water Science >Hydrodynamic modeling of outlet stability case study Rosetta promontory in Nile delta
【24h】

Hydrodynamic modeling of outlet stability case study Rosetta promontory in Nile delta

机译：尼罗河三角洲出口稳定性水动力模型研究Rosetta海角

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The hydrodynamic features of Rosetta promontory are simulated numerically to minimize the outlet siltation problems. Many coastal structures (i.e. revetments, groins) are used to solve the erosion of the shoreline and siltation in the outlet. However, the shoreline along the promontory is still unstable and these structures did not achieve the expected results to reduce the problem where the erosion problem is shifted down drift. In this research three potential solutions were investigated. The first solution is to apply a soft approach in term of re-establishment of natural hydrologic conditions such as providing additional water discharge processes through diverting Burullus drains to the end of the estuary to achieve the nature and stable condition for the promontory. The second proposed solution is to reach the equilibrium cross section of the outlet by dividing the Rosetta outlet into two parts by constructing two 500m separated jetties. The third solution is to control the sedimentation in the outlet by constructing 450m length jetty attached to the eastern bank of the estuary. Numerical Coastal Modeling System (CMS) was used after tuning the model parameters to check the feasibility of the different proposed solutions on the stability of outlet channel. The study shows that an additional discharge of 47m 3 /s in the first scenario results in a stable outlet cross section suitable for navigation purposes but with limited effect on the erosion problem.
机译：对罗塞塔海角的水动力特性进行了数值模拟，以最大程度地减少出口淤积问题。许多沿海结构（例如护岸，腹股沟）用于解决海岸线的侵蚀和出口的淤积。但是，沿海角的海岸线仍然不稳定，这些结构未达到预期的效果，无法减少侵蚀问题向下偏移的问题。在这项研究中，研究了三种潜在的解决方案。第一个解决方案是在重建自然水文条件方面应用一种软方法，例如通过将Burullus排水管改道至河口末端以提供额外的排水过程，以实现海角的自然和稳定条件。第二个建议的解决方案是通过构造两个500m分开的码头，将Rosetta出口分为两部分，从而达到出口的平衡截面。第三种解决方案是通过在河口东岸建造450m长的码头来控制出口的沉积。在调整模型参数后，使用了数值海岸建模系统（CMS）来检查提出的各种解决方案对出口通道稳定性的可行性。研究表明，在第一种情况下，额外的流量为47m 3 / s可使出口横截面稳定，适用于航行，但对侵蚀问题的影响有限。

著录项

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