Prediction of coupled particle and fluid flows using DEM and SPH
Prediction of coupled particle and fluid flows using DEM and SPH
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DOI：
10.1016/j.mineng.2014.09.005
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发表时间：
2015-03-15
影响因子：
4.8
通讯作者：
Cleary, Paul W.
中科院分区：
文献类型：
--
作者：
Cleary, Paul W.
采用离散元法（DEM）和光滑颗粒流体力学（SPH）相结合的方法对固相颗粒与浆体流动相互作用的运动进行了预测。DEM模拟粗颗粒的运动，而SPH模拟浆液（水和细颗粒）。这种三维方法在溜槽、36' SAG轧机的中心片和哈丁试验轧机的多相混合流中得到了验证。它被证明是鲁棒和稳定的，能够预测复杂的耦合自由表面颗粒和泥浆流动，包括从干燥到完全饱和的饱和水平变化的飞溅。它适用于移动设备中多相流的预测，包括分级格栅等小型结构。爱思唯尔有限公司版权所有版权所有。
A coupled DEM (discrete element method) and SPH (smoothed particle hydrodynamics) method is used to predict the motion of the solid particles interacting with slurry flow. DEM simulates the motion of the coarser particulates while SPH simulates the slurry (water and finer particulates). This three dimensional method is demonstrated for multiphase mixing flow on a chute, in a central slice of a 36' SAG mill and in a Hardinge pilot mill. It is shown to be robust and stable and able to predict complex coupled free surface particle and slurry flows including splashing with saturation levels varying from dry to fully saturated. It is suitable for prediction of multiphase flow in moving equipment including small scale structures such as classification grates. Crown Copyright (C) 2014 Published by Elsevier Ltd. All rights reserved.