Three phase liquid–liquid–gas flows in 5.6 mm and 7 mm inner diameter pipes

详细信息    查看全文

• 作者：Adrian Wegmann ; Julia Melke ; Philipp Rudolf von Rohr
• 关键词：Three phase flow ; Liquid– ; liquid– ; gas ; LIF ; Flow map
• 刊名：International Journal of Multiphase Flow
• 出版年：2007
• 出版时间：May 2007
• 年：2007
• 卷：33
• 期：5
• 页码：484-497
• 全文大小：1885 K

文摘

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 °C), 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.