采用离散元方法，对喷动流化床内的颗粒混合特性进行了三维直接数值模拟。
Numerical simulations on particle mixing characteristics of spout-fluid bed were carried out in three dimensional based on discrete element method (DEM).
对气固两相平板混合层流动，采用离散涡方法模拟气相场，轨道法跟踪颗粒的运动。
The gas and particle phase in the gas solid two phase plane mixing layers flow is numerically simulated using the discrete vortex method and trajectory method respectively.
在模型中，对液相采用欧拉法建立控制方程，对离散颗粒采用拉格朗日方法模拟。
In this model, governing equations of liquid were established with Eulerian approach, and discrete particle phase was simulated through Largrangian method.
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