河床床沙组成数值模拟方法  

Numerical Modelling for the Composition of Graded River Bed-material

作　　者：吴卫民[1] 杨国录[1] 陈振红[1] 杨培炎 凌万沛 

机构地区：[1]武汉水利电力大学,电力部水利部中南勘测设计院

出　　处：《武汉水利电力大学学报》1994年第3期320-327,共8页Engineering Journal of Wuhan University

摘　　要：在以往的研究基础上，对模拟河床冲淤过程中河床混合层概念作了进一步的发展，对描述这一物理过程的数学方法提出了新的见解，并建立了更具一般意义的数学物理方程式，同时，提出了采用非耦合解时求解混合层组成方程式的有效数值方法．A one-dimensional numerical model is developed for simulating the graded sediment on the river bed.A graded river bed-material composition equation,which can be used to deseribe the changing physical process of the graded sediment on the river bed both in aggradation and degradation of river bed,is given.A numerical method is proposed in order to eliminate the possibility of sediment deficit phenomenon in mix layer when.scouring occurred.The model is well verified and used for several hydraulic projects to predict sedimentation processes of reservoir and river bed deformation in channels.

关 键 词：河床 床沙 组成 数值模拟 

分 类 号：TV143[水利工程—水力学及河流动力学]