分蓄洪区数学模型中边界处理的改进

穆锦斌; 胡晓张; 张小峰; 庄佳

引用本文:	穆锦斌,胡晓张,张小峰,庄佳.分蓄洪区数学模型中边界处理的改进[J].水利水运工程学报,2006,(4):51-56

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分蓄洪区数学模型中边界处理的改进
穆锦斌¹,胡晓张²,张小峰¹,庄佳¹
1. 武汉大学,水资源与水电工程科学国家重点实验室,湖北,武汉,430072 2. 珠江水利委员会,广东,广州,510611

摘要:

针对分蓄洪区水流数值计算中的复杂边界问题,在传统笛卡尔坐标方法的基础上改用斜角笛卡尔方法.该方法能更好地贴近实际水边线,又能保留传统笛卡尔方法的优点.运用改进的分蓄洪区平面二维水流数学模型计算了湖北省白谭湖分蓄洪区洪水演进的情况.

关键词: 分蓄洪区,数值计算,复杂边界,斜角笛卡尔方法

DOI：

分类号:TV87 TV131.4

基金项目:国家重大基础研究计划(973)项目(2003CD415203)

Improvement of boundary treatment in mathematical model of flood diversion area

MU Jin-bin¹,HU Xiao-zhang²,ZHANG Xiao-feng¹,ZHUANG Jia¹

1. State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, China; 2. Pearl River Water Resources Commission, Guangzhou 510611, China

Abstract:

Aiming at the complex boundary in the numerical calculation of flood diversion area,a bevel angle Cartesian method is adopted based on the traditional Cartesian method.The bevel angle Cartesian method has the merits of the traditional Cartesian method and can fit the actual water boundaries better.The flood routing in the flood diversion area of Baitan Lake,in Hubei Province,is calculated by the developed plane 2-D water mathematical model for flood diversion area.

Key words: flood diversion area,numerical calculation,complex boundary,the bevel angle Cartesian method