【摘要】 回顾了颗粒离散元法(DEM)的发展过程.综述了该方法的理论和各种颗粒作用模型,包括各种实用的干颗粒DEM模型和研究中的湿颗粒建模的进展;介绍了国内外颗粒离散元法模拟的成就以及离散元法与其他数值方法结合的扩展性研究的进展.最后指出了存在的问题,并对发展动向进行了预测.更多还原

【Abstract】 A state-of-art review on the development of the Discrete Element Methods(DEM) for particulate materials was presented. The fundamentals and methodology as well as various models of particle interactions were briefly described, including the models used in practice for dry particles and progresses in modeling wet particles. Applications of DEM to various engineering areas and the up-to-date expansive investigation using the combination of DEM with other numerical methods were introduced. Finally some problems were pointed out and the trends of the DEM development were discussed.更多还原