气液两相段塞流中双流体模型的分析  

A Two-Fluid Model Used In Gas and Liquid Two-Phase Slug Flow

作　　者：赵志勇[1] 王树立[1] 彭杰[1] 

机构地区：[1]抚顺石油学院机械工程分院储运工程系,辽宁省抚顺市113001

出　　处：《管道技术与设备》2001年第1期3-7,13,共6页Pipeline Technique and Equipment

摘　　要：采用一维瞬态双流体模型描述了倾斜管道中气液两相段塞流的流动情况。提出了段塞单元的简化水力模型。认为段塞流是由一系列段塞单元构成 ,该段塞单元由液相段塞区和膜区两部分组成 ;通过对段塞单元的分析 ,采用新方法来计算段塞频率、段塞单元及液相段塞的长度 ;根据其流动特点推导出表征气液两相间相互作用及气液两相与管壁间相作用的关联式。本文在处理相间曳力系数时摒弃以往采用经验常数的方法 ,而是在稳态段塞流动量守恒方程的基础上推导出新型的曳力系数表达式从而达到封闭模型的目的。A one dimension transient two fluid model was employed to describe the slug flow in a tilting tube which carries the gas liquid two phase mixture.It is supposed that slug flow be constitute of series of slug units which contain two parts:the liquid slug zone and film zone.the constitutive relationships for interaction between gas and liquid,and also that of two phase and the tube wall were derived from it's movement property on the basis of momentum balance.A conservative equation,but not from the empirical data.

关 键 词：气液两相 瞬态 双流体模型 段塞流 两相流 管道输送 动量传输 

分 类 号：O359.1[理学—流体力学] U17[理学—力学]