圆管中气液两相流动空隙率数学模型  

Mathematical model of void fraction for gas-liquid two-phase flow in pipelines

作　　者：韩洪升[1] 王忠信[2] 杨树人[1] 付俊林 田华[3] 

机构地区：[1]大庆石油学院石油工程学院,黑龙江大庆163318 [2]大庆油田有限责任公司第一采油厂,黑龙江大庆163000 [3]辽河石油勘探局工程技术研究院,辽宁盘锦124010

出　　处：《大庆石油学院学报》2002年第4期19-21,共3页Journal of Daqing Petroleum Institute

基　　金：中国石油天然气集团公司"九五"攻关项目 (96-0 6-0 1)

摘　　要：由于气液两相流动的复杂性 ,很难应用流体运动的基本方程确定空隙率的变化规律 .故采用实验研究途径 ,开发了美国NorthCarolina州大学研制的应用软件SAS ,并对多次气液两相流动实验的 6× 10 4 多组实验数据进行了多元非线性回归 ,建立了圆管中不同流动型态下气液两相流动空隙率数学模型 .在多相混输管路实际应用中表明 ,本方法适用于不同管径、不同倾角下的上升或下降管路中各种流动型态两相流动的水力计算 ,并具有计算简便。Because of the complexity of two\|phase gas\|liquid flow, the variation pattern of porosity is very difficult to deal with by fundamental equation for fluid flow. So we adopt the laboratory research approacn and use software SAS developed by America North Carolina University. A mathematical model of two\|phase flow void fraction is built up under the condition of different flow patterns in pipes. It is based on complex nonlinear regression which was set up based on over 60 group of data gathered from more than 2,000 experiments of two\|phase gas\|liquid flow. Calculation to multiphase flow pipe indicates that this method is fit for hydraulic design of two\|phase flow under all kinds of flow patterns in pipelines with different diameters and inclination angles for both upflow and downflow, moreover, it is both simple and accureat. This method provides a theoretical basis for calculation of multiphase flow pipelines.

关 键 词：圆管 气液两相流动 空隙率 数学模型 油气田开采 多相混输管路 多元回归 

分 类 号：TE832[石油与天然气工程—油气储运工程]