建立同时考虑颗粒和颗粒之间瞬间碰撞作用(瞬间接触)和非流化下颗粒滑动和滚动运动产生的颗粒半接触作用的颗粒碰撞-摩擦应力模型.推导具有普适性的固相动量守恒方程,建立高颗粒浓度气固两相流动模型,对喷动床内气体颗粒流动过程进行了数值模拟.模拟计算预测喷动床内喷射区、环隙区和喷泉区颗粒流动特性.预测喷动床内颗粒浓度和速度分布与他人实验结果相吻合.
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