旋转旋流离心机转鼓内流体动力学研究.pdf

∀ ∀ * 范 强, 李永杰 ( 西南石油大学, 四川成都 610500) 摘 要: 以流体动力学基本方程为基础, 在 层流 流态 , 对旋转旋流离心机转鼓内流体流动的速度场和压力场进行 了分析计算, 推导出了转鼓内流体的速度和压力的计算公式, 它们是计算离心机处理量和分离粒度的理论基 础, 同时也是离心机转鼓强度计算的理论依据 关键词: 离心机; 旋流分离器; 流体速度; 流体动力学 中图分类号: TH 452 文献标识码: A 文章编号: 1006- 44 14( 2009) 04- 0047- 03 The hydrodynam ic research on the rotating cyclone centrifuge Fan Q iang, L iYong- jie (The southw es tp etroleum university, Chengdu S ichuan 610500, Ch ina) Abstract: Ba ed on the hydrodynam ic equation , the veloc ity and pre ure field in the drum of rotating cy clone centrifuge are analy ed under lam inar flow tate. T he comm on equation of fluid velo city and pre ure di tribution have been got. They are the ba i of calcu lating the capacity and eparating ize of the centr ifuge. K ey words: centr ifuge; cyclone; fluid velo city; flu id dynam ic 2 2 2 1 2 = 2 + 2 2 + + 1. 1 r r z rt , 2 [ 1, 2] : ur ur u uz 1 + + + ( 1) r r r z : u , u , u r z 1. 2 - - , , : 2 u p 2 L u - = - + r ! 2 u + 1 r r r 1 2 2u ur v ( u - + ) ( 2)