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首页> 外文期刊>International Journal of Multiphase Flow >Three phase liquid–liquid–gas flows in 5.6 mm and 7 mm inner diameter pipes
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Three phase liquid–liquid–gas flows in 5.6 mm and 7 mm inner diameter pipes

机译:内径为5.6 mm和7 mm的管道中的三相液-液-气流动

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摘要

Three phase liquid–liquid–gas flow maps in pipes of medium inner diameters (5.6 mm and 7 mm), are presented. A low viscosity paraffin oil (4.5 × 10-3 Pa s viscosity and 818.5 kg m-3 density at 20 ℃), deionised water and air are flowing concurrently in Schott Duran glass pipes. A decreasing pipe diameter changes the flow pattern maps and also the behavior of the transition boundaries. Flow patterns are determined by high speed photography. To illuminate the pipe, laser induced fluorescence (LIF) is applied. The laser sheet is cutting through the axial vertical plane of the pipe. The laser light excites a fluorescent dye (uranine) in the water phase to separate the phases optically. The resulting flow maps are compared with literature data and a theoretical model.
机译:给出了中等内径(5.6 mm和7 mm)管道中的三相液-液-气流动图。低粘度石蜡油(粘度为4.5×10-3 Pa s,在20℃时密度为818.5 kg m-3),去离子水和空气同时在Schott Duran玻璃管中流动。管径的减小会改变流型图以及过渡边界的行为。流动方式由高速摄影确定。为了照亮管道,应用了激光诱导荧光(LIF)。激光片穿过管道的轴向垂直平面。激光激发水相中的荧光染料(尿嘌呤),以光学方式分离各相。将生成的流程图与文献数据和理论模型进行比较。

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