城陵矶河段莲花塘断面横向水位落差及其影响因素计算分析  

Analysis on water level difference crossing Lianhuatang section and it's influence factor

作　　者：余明辉[1] 刘智[2] 方芳 余飞[2] 

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 [2]中南电力设计院,湖北武汉430071 [3]湖北省环境科学研究院,湖北武汉430072

出　　处：《武汉大学学报（工学版）》2005年第2期30-34,共5页Engineering Journal of Wuhan University

基　　金：国家"973"计划课题(2003CB415206);国家自然科学基金(50209012)资助项目.

摘　　要：弯道环流形成的城陵矶河段莲花塘断面横向水位落差是防洪中非常关心的问题之一.基于平面二维非恒定流数学模型,用水动力学的方法计算莲花塘断面横向水位落差与长江干流及洞庭湖来流情况的关系,并对计算结果加以分析,表明莲花塘断面横向水位落差主要是由弯道环流作用引起的.Water level difference crossing Lianhuatang section reduced by circulation flow is one of the most important problem in flood control. Based on the mathematical model of two-dimensional unsteady flow, the relationship between water level difference crossing Lianhuatang section and discharges of Jingjiang Rech and Dongting Lake has been calculated and analyzed by using hydrodynamic method. Finally, some conclusions are drawn.

关 键 词：莲花塘断面 横向水位落差 平面二维非恒定流数学模型 

分 类 号：TV13[水利工程—水力学及河流动力学]