同轴旋拧气流中液体射流雾化特性的实验研究

上海大学学报(自然科学版) ›› 2009, Vol. 15 ›› Issue (3): 284-289.

同轴旋拧气流中液体射流雾化特性的实验研究

刘正胡国辉周哲玮

上海大学上海市应用数学和力学研究所，上海 200072

出版日期:2009-06-30 发布日期:2009-06-30
通讯作者: 胡国辉（1969～），男，教授，研究方向为流体界面稳定性.E-mail:ghhu@staff.shu.edu.cn

Experimental Investigation on Atomization of Liquid Jet by Swirling Coaxial Gas

LIU Zheng, HU Guo-Hui, ZHOU Zhe-Wei

Shanghai Institute of Applied Mathematics and Mechanics, Shanghai University, Shanghai 200072, China

Online:2009-06-30 Published:2009-06-30

摘要/Abstract

摘要：

用相位多普勒分析仪对同轴旋拧气流中液体射流雾化特性进行实验研究，测量不同气体射流速度和不同旋拧数下雾化液滴的直径.通过对索特平均直径的对比,分析旋拧气流对射流雾化的影响，并确定临界旋拧数的范围.

关键词: 同轴旋拧射流；雾化；相位多普勒分析仪

Abstract:

Breakup of a water jet by a swirling coaxial annular air jet is studied by phaseDoppler anemometry experimentally. To understand the influence of swirling gas on the liquid jet breakup, mean diameters of atomized particles are measured for different swirl ratios and velocities of gas. The range of critical swirl ratio, above which the liquid jet undergoes an explosive disintegration, is determined by analyses of the obtained Sauter mean diameter.

Key words: swirling coaxial jet； atomization； phaseDoppler anemometry

中图分类号:

O358

刘正胡国辉周哲玮. 同轴旋拧气流中液体射流雾化特性的实验研究[J]. 上海大学学报(自然科学版), 2009, 15(3): 284-289.

LIU Zheng, HU Guo-Hui, ZHOU Zhe-Wei. Experimental Investigation on Atomization of Liquid Jet by Swirling Coaxial Gas[J]. Journal of Shanghai University（Natural Science Edition）, 2009, 15(3): 284-289.