【摘要】 筒型内件可以改善气固流化床中气体和固体颗粒的接触，本文对此系统的流体力学特性进行了研究，从而得出数学模型．用此模型模拟鼓泡流化床得到良好结果．更多还原

【Abstract】 In a gas-solid fluidized bed, the contact between gas and solid particles could be improved by use of an internal draft tube. The hydrodynamic behavior of this system was investigated, and a correlating model was proposed for satisfactory simulation of the behavior of bubbling fluidized beds.更多还原