发布时间:2016/5/18 14:20:34 作者:常永超,唐亚鸣 【字体:
大 中 小】
常永超,唐亚鸣
(河海大学 机电工程学院,江苏 常州 213022)
摘要:卡门涡街是流体力学中重要的现象,将卡门涡街应用在喷雾领域得到一种新的涡街雾化技术。通过对涡街雾化机理的研究及涡街雾化喷嘴结构中文丘里管和发散头形状的设计,发现涡街雾化可以实现对液体的三次雾化及产生卡门涡街,使雾化后的雾滴更细、雾滴分布更均匀、雾滴粒径更小(10 μm以下)、雾滴颗粒在空气中悬浮时间更长。
关键词:卡门涡街;涡街雾化;三次雾化;粒径
中图分类号:S491 文献标志码:A doi:10.3969/j.issn.1006-0316.2016.05.002
文章编号:1006-0316 (2016) 05-0005-05
Research and application of three atomization mechanism of vortex street
CHANG Yongchao,TANG Yaming
( College of Mechanical and Electrical Engineering, Hohai University, Changzhou 213022, China )
Abstract:Karman vortex street is important phenomenon in fluid mechanics. Applying karman vortex street in spray fields, for getting a new kind of vortex street atomized technology. We can find that vortex street atomization can realize three atomization of liquid and produce karman vortex street through the study of vortex street atomization mechanism and the design of venturi tube and divergent head. After atomizing, droplets are more fine, distribution of droplets is more uniform, particle diameter is smaller (under 10 microns), particles are suspended longer in the air.
Key words:karman vortex street;vortex street atomization;three atomization;particle size
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收稿日期:2015-11-23
基金项目:江苏省普通高校学术学位研究生创新计划项目(KYLX15_0503)
作者简介:常永超(1990-),男,山东聊城人,硕士研究生,主要研究方向为机械工程。