平原分汊河道水流数值模拟及其应用  

The Numerical Model of Flow and its Applications in the Bifurcated Channel of Plain

作　　者：罗忠[1] 蒋昌波[2] 肖政[2] 刘晓平[2] 

机构地区：[1]海军南海工程设计院,广东湛江524003 [2]长沙理工大学河海工程院,湖南长沙410076

出　　处：《长沙电力学院学报（自然科学版）》2005年第3期92-96,共5页JOurnal of Changsha University of electric Power:Natural Science

基　　金：国家自然科学基金(10202003和50479015);湖南省自然科学基金(04JJ3036)资助项目

摘　　要：针对平原分汊河道的特点,建立水流运动平面二维数学模型,采用有限单元法离散控制方程,能较好处理平原多汊河道的复杂边界.通过湘江下游香炉洲、冯家洲河段流速、水位及分流比的计算分析,计算结果与实测资料吻合较好.说明该模型的建立和边界处理方法合理,可用于河段治理方案的计算研究.Oriented the governing equa The computational to the features of bigurcated channel in the plain, a 2-D flow model with FEM to discrete tions was proposed in the paper, which can deal with the related complicated boundaries. examples of the Xiangluzhou and Caijiazhou sections showed the good agreement with the measuring data of the current velocity, water level and the diversion ratio. Thus the model is feasible for the simulation of river regulation projects.

关 键 词：分汉河道 数值模拟 有限单元法 

分 类 号：TV135[水利工程—水力学及河流动力学]