不同管径水平管气液两相流流动特性数值模拟  

Numerical Simulation of Two-phase Pressure Drop Characteristics of Different Pipe Diameter

作　　者：杨通 邓豪 王倩[1] Yang Tong;Deng Hao;Wang Qian(Institute of Petroleum Engineering,Xi′an Shiyou University,Xi'an710065,China)

机构地区：[1]西安石油大学石油工程学院,陕西西安710065

出　　处：《山东化工》2022年第1期40-43,47,共5页Shandong Chemical Industry

摘　　要：为更好了解不同管径水平管气液两相流的压降特性,选用空气和水在管径分别为38.1,50.8,101.6 mm,长为9.525 m的水平管内进行气液两相流数值模拟,并结合理论分析了不同管径下水平管气液两相流压降的变化规律。利用Fluent软件研究结果表明:在同一管径下,当液速一定时,压降随气速的增大而增大;气速恒定时,压降随液速的增加而增大。在不同管径下,压力梯度随着气相表观速度的增加而增大。当气液速相同时,压力梯度随管径的增加而减小。在液速恒定时,持液率随气速的增大而减小;同一气速下,持液率随液速的增大而增大;基本条件相同时,随管径的增大,持液率降低。不同管径下水平管内气液两相流压力梯度实验值与模拟值近似,且误差控制在10%以内。In order to better understand the pressure drop characteristics of two-phase gas and liquid in different pipe diameter,air and water are selected to conduct numerical simulation of gas-liquid two-phase flow in horizontal pipe with the length of 9.525 m and the diameter of 38.1,50.8,101.6 mm respectively.And pressure drop variation of gas-liquid twophase flow in horizontal pipe with diffenert diameters is analyzed.The results of Fluent software showed that at the same pipe diameter,the pressure drop increases with the gas velocity.At different pipe diameter,the pressure gradient increases with the gas phase apparent velocity.When the gas and liquid velocity is the same,the pressure gradient decreases with the pipe diameter.The experimental value of two-phase flow pressure gradient of horizontal gas and liquid pipe under different pipe diameter is similar to the simulated value,and the error is controlled within 10%.

关 键 词：不同管径 水平管 压降 数值模拟 

分 类 号：TQ019[化学工程] TE832[石油与天然气工程—油气储运工程]