农业物料流化床中颗粒偏析运动的随机微分方程

本文在研究农业物料流化床中颗粒沿铅垂方向的偏析运动时,用概率的方法对影响运动最主要的随机因素——颗粒间的碰撞作用进行描述,在此基础上建立了床中颗粒沿铅垂方向偏析运动的随机微分方程,并对求解方法进行了初步的探讨。另外,还对部分农业物料流化床的表观粘度、床中颗粒的扩散系数进行了测定,从而为流化偏析现象的实际应用和进一步研究打下了一定的理论基础。

Stochastic Differential Equation for Partial Deviation Motion in Agricultural Material Fluidized Bed

Effect of main random factor, i.e. collision among particles, on mo-differential equation thereby derived for the vertical divation motion, and its solution preliminarily approached. Also, measured are apparant viscosities of several agricultural material fluidized beds and diffusion coefficients of particles in the bed, and theoretical basis thus provided for practical use and further study of the appearance of deviation.