| 环状河道二维浅水流动的全隐数值求解方法 |
| |
| 引用本文： | 向小华,苏长城,吴晓玲,王船海.环状河道二维浅水流动的全隐数值求解方法[J].水科学进展,2008,19(6):807-813. |
| |
| 作者姓名： | 向小华 苏长城 吴晓玲 王船海 |
| |
| 作者单位： | 1.河海大学水文水资源与水利工程科学国家重点实验室, 江苏, 南京, 210098; |
| |
| 摘 要： | 基于通用河网二维水流模式,采用全隐式矩阵追赶与回代技术,提出了环状河道单元二维数值模拟的通用模型。该模型仿照一维河网的建模方法,通过建立节点水位方程组,能方便地实现全流域二维河网或者一二维河网的隐式耦合求解。通过对长江下游南京八卦洲段分汊河道的数值模拟,表明该方法精度较高,切实有效,能满足实际工程的需要。
|
| 关 键 词： | 二维数值模拟 环状河道 全隐式矩阵追赶法 浅水流动 |
| 收稿时间： | 2007-10-29 |
Full implicit numerical method for two-dimensional shallow flows in orbicular river cell |
| |
| XIANG Xiao-hua,SU Chang-cheng,WU Xiao-ling,WANG Chuan-hai.Full implicit numerical method for two-dimensional shallow flows in orbicular river cell[J].Advances in Water Science,2008,19(6):807-813. |
| |
| Authors: | XIANG Xiao-hua SU Chang-cheng WU Xiao-ling WANG Chuan-hai |
| |
| Institution: | 1.State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing 210098, China;2.Jiangsu Provincial Water Conservancy Engineering Planning Office, Nanjing 210029, China |
| |
| Abstract: | Based on the generic 2D river-network model, a generic numerical model for 2D orbicular river cell is presented by applying the full implicit matrix chase-after method. Accoreding to the modeling method for 1D river-network, the model estabilishes the equations of water level nodes which can be easily used to realize the 2D river-network and 1D-2D coupling river-network by a implicit way. With the numerical results about Yangtze Rive branch of BAGUA island in NANJING, it can be indicated that the model is effective and valuable. |
| |
| Keywords: | 2D numerical simulation orbicular river cell matrix chase-after method shallow flow |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《水科学进展》浏览原始摘要信息 |
| 点击此处可从《水科学进展》下载免费的PDF全文 |
|
