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.
出处
《武汉水利电力大学学报》
CSCD
1994年第3期320-327,共8页
Engineering Journal of Wuhan University
关键词
河床
床沙
组成
数值模拟
river bed
bed-material
composition
mathematical model
