气固磁流化床的双相模型

通过局部平无权函数Γ（ｒ），定义了气固磁流化床中的局部平均变量，导出了建立在局部平均意义上的气固两相的连续性方程和运动方程。通过分析磁流化床中的应力张量Ｅｉｊ、曳力ｎｆｉ、磁力ｎｆｍｉ，使方程组封闭，建立了描绘磁流化床中气固两相运动的数学模型，给出了该模型的数值模拟应用实例。

A Two Phase Model of Gas Solid Magnetically Fluidized Bed

A set of equations of motion and equations of continuity, based on the local mean variables in the gas solid magnetically fluidized bed, is developed by defining a local mean weighing function. Through evaluating the gas stress, drag force and magnetic force, the closure of these equations is achieved and a two phase model for describing the gas solid flows in the magnetically fluidized bed is set up. A numerical example to simulate the flows of MFBs by using this two phase model is presented.