The basic principles of DEM(discrete element model), and the equations of particle motion and models of particle particle interaction are introduced.
介绍了离散元（DEM）方法的基本原理、颗粒运动控制方程和颗粒相互作用力的数学模型。
Fifthly, based on the consideration of sediment diffusion because of sediment particle interaction, the equation of vertical distribution of sediment concentration is derived.
五是在考虑泥沙颗粒碰撞扩散的基础上，推导了泥沙浓度沿垂线的分布规律。
Fifthly, based on the consideration of sediment diffusion because of sediment particle interaction, the equation of vertical distribution of sediment concentration is derived.
五是在考虑泥沙颗粒碰撞扩散的基础上，推导了泥沙浓度沿垂线的分布规律。
应用推荐