本文通过采用实验和数值模拟的方法，研究了喷动流化床内气体混合特性以及床内气固两相的流动特性。
The dissertation studies the characteristics of gas mixing and the gas-solid two phases flow in spouted-fluidization bed with experiment and numerical simulation methods.
用此模型对循环流化床的两相流动进行数值模拟，得到了较详细的床内流动特性。
These models are used to numerically study the two-phase flow in a Circulating Fluidized Bed (CFB), and detailed results regarding the dense two-phase flow characteristic in a CFB are obtained.
通过对床中物体表面与碰撞颗粒流之间的动量衡算，将颗粒流动量通量与颗粒的碰撞压力相关联，建立了流化床中颗粒碰撞压力的理论模型。
Relating the momentum flux of particle with the particle impact pressure on objects, a theoretical model of the particle impact pressure in fluidized bed is developed.
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