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华东理工大学学报:2017,43(3):304-310
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表面活性剂对悬浮液液滴形成的影响
章文斌, 赵辉, 许建良, 李伟锋, 刘海峰
(华东理工大学煤气化及能源化工教育部重点实验室, 上海煤气化工程技术研究中心, 上海 200237)
Influence of Surfactant on Suspension Drop Formation
ZHANG Wen-bin, ZHAO Hui, XU Jian-liang, LI Wei-feng, LIU Hai-feng
(Key Laboratory of Coal Gasification and Energy Chemical Engineering of Ministry of Education, Shanghai Engineering Research Center of Coal Gasification, East China University of Science and Technology, Shanghai 200237, China)
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投稿时间:2016-11-16    
中文摘要: 在以空心玻璃微珠为分散相、超纯水为分散介质的悬浮液中加入表面活性剂,通过高速摄像机研究表面活性剂对悬浮液液滴形成的影响。研究结果显示:在液滴形态变化方面,喉部直径对时间的变化率随着表面活性剂质量分数的增大而减小;液滴断裂长度与卫星液滴直径均呈现先减小后增大的趋势;形成的悬浮液液滴直径随表面活性剂质量分数的增大而逐渐减小;当表面活性剂质量分数相同时,液滴生长速率随着时间的推移而逐渐增加;在相同时刻下,液滴生长速率随着表面活性剂质量分数的增大而增大,但始终小于对照组液滴的生长速率。
Abstract:The influence of surfactant on suspension drop formation,which consists of the hollow glass-bead and ultrapure water,was studied experimentally with the high-speed camera.The results indicated that the thinning dynamics of neck diameter reduced with the increase of the surfactant concentration.The breakup length of filament and the diameter of satellite drop decreased first,and then increased when the surfactant mass fraction increased.However,the diameter of the formed drop reduced with the increase of the surfactant mass fraction.Finally,the drop growth velocity increased with time at the same surfactant mass fraction.The drop growth velocity increased when the surfactant mass fraction increased,while always smaller than that of the control group.
文章编号:     中图分类号:TQ423.1    文献标志码:
基金项目:国家自然科学基金(21506059);中央高校基础研究基金(WB1617004);上海自然科学基金(15ZR1409500)
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