河口海岸动力学 | 相关新闻 | 中国河口 | 中国海岸 | 中国海洋 | 沿海港口 | 治理工程 | 研究资料 | 专家学者

CJK3D系统 | 水利期刊在线 | 长江口 | 专题研究 | 水文观测 | 物理模型 | 数值模拟 | 程序下载 | 友情链接

当前位置:中国河口海岸治理 >> 数学模型 >> 国外模型:CCHE
 

国外模型

  Delft3D

  MIKE

  POM

  CCHE

数值模拟知识

  模拟规程

 

 

国外模型:CCHE-TIDE

 

 

 

Model Description

The CCHE-TIDE provides an add-in module for CCHE2D to add the capability of simulating tidal flows in estuaries and coastal areas. The CCHE-TIDE extends the use of the CCHE2D for simulating tidal waves, tidal currents, and residual currents under the conditions of incident tidal waves (non-reflective), tributary flows, non-uniform wind force, and Coriolis force. The incident tidal waves at open-sea boundaries can be specified as time series of observed tidal levels or a combination of tidal constituents. In particular, the model provides non-reflective open boundary conditions for the cases that the reflective waves need to be taken into consideration. The CCHE-

TIDE has been tested and validated using various laboratory and field data.

 

One of the ongoing projects in the research group is to develop a module for the CCHE3D model for simulation of three-dimensional tidal flows in large-scale and complex bathymetries. The CCHE3D hydrodynamic model together with the tide simulation module can simulate three-dimensional tidal waves, tidal currents, and residual currents under the conditions of incident tidal waves (non-reflective), tributary inflows, wind field, and Coriolis force.

Both 2D and 3D tidal models can simulate long-wave tidal flows and short-wave oscillatory free-surface flows.

 

Main Features of CCHE-TIDE

The two-dimensional CCHE-TIDE module has the ability to

• Simulate tidal levels, tidal currents, residual currents in estuaries and coastal areas with complex bathymetries and boundary conditions;

• Consider different external forces, e.g., non-uniform wind forces, Coriolis force, complex tributary inflows, etc;

• simulate non-reflective open boundary conditions for the cases that the reflective waves need to be taken into consideration;

• Simulate sediment transport by different empirical models in riverine and coastal/estuarine region.

The three-dimensional CCHE-TIDE module has the ability to
• Simulate three-dimensional unsteady free surface flows with the assumption of hydrostatic pressure or non-hydrostatic pressure;

• Simulate three-dimensional oscillatory free surface flows with long and/or short periods

• Model three-dimensional tidal flows in large-scale complex bathymetries and boundaries;

• Ability to handle non-reflective boundary conditions on open boundaries.

 

                                                               [返回]

中国河口海岸治理 | CJK3D数值模拟系统 | 水动力学论坛 | 水利期刊在线 | 联系我们

中国河口海岸治理长江口科研信息网  版权所有 (C) 2002-2005

管理员:webmaster@cjk3d.net

中国水资讯网 苏ICP备05009882号