摘要
本文从理论上对散式流态化中流化颗粒所受作用力进行了探讨。表明了广泛应用的拟均相模型的不合理性，提出了应采用分离流模型来分析散式流态化中颗粒的受力情况，证明了流化颗粒所受浮力符合阿基米德原理，即， 还推导了流化颗粒所受流体曳力的表达式：并用实验对其进行了验证。
Based on a two-phase flow momentulm equation and a mechanical energy balance equation, an expression for the buoyance on the fluidized partiles has been derived.Then,an expession for the fluid dynamic drag on the same particles was also obtained theoretically.
