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旋转管式膜分离器内流体的剪切力分布
引用本文:杨柳,陈文梅,褚良银,李晓钟,汤潍蔚.旋转管式膜分离器内流体的剪切力分布[J].膜科学与技术,2003,23(1):13-17.
作者姓名:杨柳  陈文梅  褚良银  李晓钟  汤潍蔚
作者单位:1. 四川大学软件学院,成都,610065
2. 四川大学化工学院,成都,610065
3. 四川省纺织工业研究所,成都,610072
基金项目:高校博士点基金资助项目 (2 0 0 0 0 610 16 )
摘    要:推导了稳流下旋转管式膜器环隙间流体的轴向和径向速度,得出切向和轴向剪切力解析式以及剪切力分布曲线。在非稳流下,采用函数拟合法,得出流体切向速度随半径变化的表达式及流体所受切向剪切力和分布曲线。运用端流理论,分别讨论了水力光滑膜器内和水力粗糙膜器内轴向湍流的速度分布,得出了轴向剪切力的表达式及分布曲线。

关 键 词:旋转管式  膜分离器  流体  剪切力分布  稳流  非稳流
文章编号:1007-8924(2003)01-0012-06
修稿时间:2001年11月30

Distribution of the shear stress in annular gap of rotary tubular membrane separator
YANG Liu ,CHEN Wenmei ,CHU Liangyin ,LI Xiaozhong ,TANG Weiwei.Distribution of the shear stress in annular gap of rotary tubular membrane separator[J].Membrane Science and Technology,2003,23(1):13-17.
Authors:YANG Liu  CHEN Wenmei  CHU Liangyin  LI Xiaozhong  TANG Weiwei
Affiliation:YANG Liu 1,CHEN Wenmei 2,CHU Liangyin 2,LI Xiaozhong 2,TANG Weiwei 3
Abstract:Firstly,in conditions of steady flow,expressions of axial and radial velocities in annular gap of tubular membrane separator were deduced.Shear stresses and distribution curves corresponding to axial and azimuthal velocity were given out.Secondly,in conditions of non-steady flow,azinuthal velocity and shear stress distribution were deduced according to function approximation method.In the end,axial velocities in hydro-glaze and hydro-coarseness conditions were obtained by turbulence theory,and distribution curves of axial flow shear stress were also given out.
Keywords:rotary tubular membrane separator  stedy flow  non-steady flow  shear stress
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