An automatic quadrilateral mesh generation algorithm applied to 2-D overland flow simulations
An automatic quadrilateral mesh generation algorithm applied to 2-D overland flow simulations
复制标题
应用于二维地表水流模拟的自动四边形网格生成算法
DOI：
10.1007/s10596-018-9752-6
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发表时间：
2018-06
影响因子：
2.5
通讯作者：
Gour-Tsyh Yeh
中科院分区：
文献类型：
--
作者：
Lu Sun;Guoqun Zhao;Gour-Tsyh Yeh
本文提出了一种自动四边形网格生成算法，为模拟流域系统中的地表流量和运输问题提供二维网格。对等形制图方法进行深入研究并具体处理，根据河流宽度和其他蓄水区面积制定策略。提出了一种整合处理方法来处理具有多个子域的复杂几何离散化过程中的不兼容问题。该方法通过删除某些重叠节点并在多域网格的公共边界上创建新的适当节点来确保网格一致性。针对网格边界与几何轮廓的偏差，提出了一种相对位置百分比插值方法，并提出了一种与死角相关的补充匹配方法。并且达到了边界节点投影和平滑的双重效果。提出了一种目标函数方法来局部优化位于凹或大曲率曲线上的退化四边形。为了适应陆上模拟的需要，建立了河段、有蓄水和无蓄水交汇处、池塘、湖泊、死角和控制结构的一维/二维对应关系。最后通过实际应用验证了本文提出的四边形网格划分算法的准确性和可靠性。
This paper presents an automatic quadrilateral mesh generation algorithm to provide 2-D meshes for simulating overland.flow and transport problems in watershed systems. The conformal mapping method is studied deeply and specific treatment.strategies are established according to the width of rivers and the area of other water storage zones. A conformity treatment.method is proposed to deal with the incompatibility problems during discretizing the complex geometry with a plurality of.sub-domains. This method ensures grid conformity through removing certain overlapped nodes and creating new appropriate.nodes on common boundaries of the multi-domain mesh. Aiming at the undesired deviation of mesh boundaries from.geometric contours, a relative position-percent interpolation method is proposed and a supplementary match method related.to dead ends is presented. And, the double effects of projection and smooth for boundary nodes are achieved. An objective.function method is proposed to locally optimize the degenerated quadrilaterals located on concave or large-curvature curves..In order to accommodate the need for overland simulations, the 1-D/2-D correspondence on river reaches, junctions with.and without storage, ponds, lakes, dead ends and control structures is established. Finally, practical applications are provided.to demonstrate the accuracy and reliability of the quadrilateral meshing algorithms proposed in this paper.
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影响因子：
1.8
作者：
M. Yerry;M. Shephard
通讯作者：
M. Yerry;M. Shephard
影响因子：
4.4
作者：
A. Poynter
通讯作者：
A. Poynter
DOI：
10.1016/j.cma.2013.11.006
发表时间：
2014-03
影响因子：
7.2
作者：
D. Wirasaet;E. Kubatko;C. Michoski;Seizo Tanaka;J. Westerink;C. Dawson
通讯作者：
D. Wirasaet;E. Kubatko;C. Michoski;Seizo Tanaka;J. Westerink;C. Dawson
影响因子：
2.5
作者：
Sun, Lu;Yeh, Gour-Tsyh;Zhao, Guoqun
通讯作者：
Zhao, Guoqun
DOI：
10.1016/0148-9062(84)90863-5
发表时间：
1982-11
期刊：
--
影响因子：
--
作者：
J. Liggett;P. Liu
通讯作者：
J. Liggett;P. Liu