气-固流化床中悬浮物体的受力及其运动规律

Forces Acting on Floating Objects and Their MotionBehavior in Gas Fluidized Bed

本文从气—固两相流动基本方程出发推导了流化床中物体所受气压分布力方程，证实在初始流化状态或气速不太高时悬浮物体处于平衡状态，所受浮力满足阿基米德定律。通过实验对上述定律进行了验证，并探讨了不同密度的悬浮物体在床中的运动规律。

he equation of gaseous pressure forces distribution on floating objects is developed with the two phases flow equation of gassolid in gas fluidized bed and Archimedes principle is testified in minimum fluidization or at low superficial gas velocity. The motion behavior of floating objects is also investigated by experiment.