...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Ocean Dynamics >Simulating vegetation effects on flows in 3D using an unstructured grid model: model development and validation
【24h】

Simulating vegetation effects on flows in 3D using an unstructured grid model: model development and validation

机译：使用非结构化网格模型模拟植被对3D流的影响：模型开发和验证

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

Prevalence of vegetation (either submerged or emergent) in shallow water significantly affects the flow and turbulence structure in this environment. In this paper, we develop a new 3D unstructured grid hydrostatic model that accounts for the 3D effects of vegetation on flows. The model uses a semi-implicit time stepping method and treats the new vegetation-related terms implicitly to enhance numerical stability, so the time step does not need to be reduced as compared with the no-vegetation cases. The stability is also independent of the vegetation parameters, so as to efficiently account for large shear that can occur around the canopy. We validate the model using lab data before applying it to a field study in San Francisco Bay-Delta to illustrate the influence of the vegetation on the flow structure as well as tidal energetics. The efficiency of the model enabled by the implicit method allows, for the first time, the simulation of the vegetation effects during multi-year evolution of vegetation in full three dimensions at large spatial scales.
机译：浅水中的植被（无论是淹没的还是突生的）的流行对这种环境下的流动和湍流结构有很大影响。在本文中，我们开发了一种新的3D非结构化网格静水模型，该模型解决了植被对水流的3D影响。该模型使用半隐式时间步长方法，并隐式处理与植被有关的新术语，以增强数值稳定性，因此与无植被情况相比，无需减少时间步长。稳定性也与植被参数无关，以便有效地解释可能在树冠周围发生的大剪切。在将模型应用于旧金山湾三角洲的实地研究之前，我们将使用实验室数据对其进行验证，以说明植被对流量结构以及潮汐能的影响。由隐式方法实现的模型的效率首次允许在大空间尺度上对植被在多年的全尺寸三维演化过程中的植被效应进行模拟。

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