数值计算中复杂边界处理研究的一种新方法  

A new method for studying simulation of complex boundaries in numerical calculation

作　　者：穆锦斌[1] 张小峰[1] 

机构地区：[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

出　　处：《武汉大学学报（工学版）》2006年第3期11-15,共5页Engineering Journal of Wuhan University

基　　金：国家重大基础研究计划(973)(2003CD415203)资助项目

摘　　要：针对水流数值计算中复杂边界问题,采用了斜对角笛卡尔方法,该方法能更好地贴近实际水边线,较传统笛卡尔方法有其独特优点,可作为锯齿法对解决复杂边界的一个扩充.在此基础上,建立了平面二维水流数学模型,并将该模型运用到湖北龙骨湖、沉底湖分蓄洪区实际计算中,取得了令人满意的结果.In the calculation of flow, the diagonal Cartesian method is adopted to simulate the complex boundaries. Compared with the traditional Cartesian method, it has unique merit which can fit the actual water boundaries better. And this method can be seen as the appending method to solve the complex boundary problems. Based on this, a plane 2-D water mathematical model for the flood diversion area is set up. The model has been applied to the flood diversion area of Longgu Lake and Chendi Lake in Hubei Province; and a satisfying result is obtained.

关 键 词：数值计算 复杂边界 斜对角笛卡尔方法 分蓄洪区 

分 类 号：TV131[水利工程—水力学及河流动力学]