最小能耗率理论在分汊河段的应用  

Application of the minimum energy dissipation rate theory in the braided river

作　　者：严以新[1] 葛亮[1] 高进[2] 

机构地区：[1]河海大学海岸及海洋工程研究所,江苏南京210098 [2]湖南科技大学土木系,湖南湘潭411201

出　　处：《水动力学研究与进展（A辑）》2003年第6期692-697,共6页Chinese Journal of Hydrodynamics

基　　金：国家自然科学基金资助项目(50079003)

摘　　要：　运用最小能耗率理论,研究了分汊河流的河相关系,得到了冲积河流支汊在自由发展或受制状况下的河流各几何要素和水动力要素之间的函数关系。这为进一步理解河道发展规律,制定航道整治工程方案提供了有用参考,也可与其它理论的数模计算相互验证。With the application of the minimum energy dissipation rate theory, this paper studies the hydraulic geometry relationship of the stream in the bifurcated reaches, and gains the functional relationship between the geometry factors and the hydrodynamic factors, when the branches develop freely or restrainedly. As a result, it not only offers a useful reference to further understanding of the principle of the stream development as well as the layout of the channel rectification project, but also could validate mutually the numerical models based on other theories.

关 键 词：分流角 偏转角 最小能耗率 河相关系 分汊河流 河流动力学 航道整治 

分 类 号：TV143.3[水利工程—水力学及河流动力学]