摘要
应用电导断层测量技术研究表面活性剂添加对水平管内气液两相流含液率的影响,实验工质为空气/水、空气/100 mg/kg十二烷基硫酸钠(SDS)水溶液。结果表明,空气/水气液两相流动在光滑分层流型区,表面活性剂添加对平均截面含液率基本没有影响。随着液体流速的增加,空气/水气液两相流动进入波状分层流型区域,添加表面活性剂可以抑制或消除界面波动,增大平均截面含液率。表面活性剂的添加使弹状流含液率下降,气液流速较低时这一现象尤为明显。
This paper presents investigations on the effect of a surface active agent on the liquid hold-up of gas-liquid two-phase flow in a horizontal pipe using the electrical conductive tomographic technique. Air/water and air/100 mg/kg sodium dodecyl sulphate (with 95% purity grade) aqueous solution are used as working fluids. The results presented a demonstration that the surfactant has no effect on the average liquid hold-up for the air-water stratified smooth flow regime. With increasing the liquid velocity, the stratified wavy flow regime is observed in the air-water flow system. At the moment, the addition of surfactant can suppress or eliminate the interfacial waves and make the liquid hold-up increased. For air-water slug flow, adding surfactant can decrease the liquid hold-up, especially at the lower gas and liquid velocities.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2005年第4期628-630,共3页
Journal of Engineering Thermophysics
基金
国家自然科学基金项目资助(No.50476035)北京市自然科学基金项目资助(No.3052004)北京市教委科技发展项目资助(No.KM200410005008)
