离心流化床的连续介质模型

A Continua Model of Centrifugal Fluidized Beds

基于连续介质理论建立了离心流化床内气固两相运动和热质传递的物理模型．对控制方程中的各项进行了分析，提出了相应的木构方程，获得了描述离心流化床中气固运动规律和能量传递规律的闭合方程组．初步计算结果与实验结果吻合得很好．为离心流化床的进一步理论和实验研究奠定了基础．

physical model of gas-solid two-phase flow and heat-mass transfer for centrifugal fluidized bed (CFB) based on the theory of interacting continua is proposed. All terms in the conservation equations are analysed. A set of governing equations describing the gas-solid motion and heat transfer in CFB is obtained. Preliminary calculations are carried out and the results agree well with that of the expriments. The basis is provided for the theoretical and experimental investigation on CFB.