离子风作用下液滴的振荡蒸发特性

TK124; 设计搭建了离子风作用下液滴蒸发试验装置,研究了不同电场和环境气体中去离子水液滴的蒸发速率、振幅和振荡频率等动态蒸发行为参数,并测量了离子风的流场速度分布.结果表明:当电压低于起晕电压时,电场力会降低液滴蒸发速率;当电压高于起晕电压时,离子风的形成会强化液滴蒸发;电压和气体离子迁移率的增加均会提高离子风的风速,加剧液滴振荡,提高液滴蒸发速率;相比液滴自然蒸发,离子风作用下液滴蒸发速率的最大增强比可达9.89;随着电压增大,离子风从不稳定状态转变为稳定状态....

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Published in江苏大学学报（自然科学版） Vol. 45; no. 2; pp. 206 - 228
Main Authors 王军锋, 赵天岳, 田加猛, 许浩洁, 左磊
Format Journal Article
LanguageChinese
Published 江苏大学 能源与动力工程学院, 江苏 镇江 212013 01.03.2024
Subjects
非均匀电场
振荡特性
evaporation characteristic
droplet
oscillation characteristic
电晕离子风
ambient gas
蒸发特性
环境气体
non-uniform electric field
液滴
corona wind
Online AccessGet full text
ISSN1671-7775
DOI10.3969/j.issn.1671-7775.2024.02.012

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Abstract TK124; 设计搭建了离子风作用下液滴蒸发试验装置,研究了不同电场和环境气体中去离子水液滴的蒸发速率、振幅和振荡频率等动态蒸发行为参数,并测量了离子风的流场速度分布.结果表明:当电压低于起晕电压时,电场力会降低液滴蒸发速率;当电压高于起晕电压时,离子风的形成会强化液滴蒸发;电压和气体离子迁移率的增加均会提高离子风的风速,加剧液滴振荡,提高液滴蒸发速率;相比液滴自然蒸发,离子风作用下液滴蒸发速率的最大增强比可达9.89;随着电压增大,离子风从不稳定状态转变为稳定状态.
AbstractList TK124; 设计搭建了离子风作用下液滴蒸发试验装置,研究了不同电场和环境气体中去离子水液滴的蒸发速率、振幅和振荡频率等动态蒸发行为参数,并测量了离子风的流场速度分布.结果表明:当电压低于起晕电压时,电场力会降低液滴蒸发速率;当电压高于起晕电压时,离子风的形成会强化液滴蒸发;电压和气体离子迁移率的增加均会提高离子风的风速,加剧液滴振荡,提高液滴蒸发速率;相比液滴自然蒸发,离子风作用下液滴蒸发速率的最大增强比可达9.89;随着电压增大,离子风从不稳定状态转变为稳定状态.
Abstract_FL An experimental device for testing droplet evaporation under the action of ionic wind was designed.The dynamic evaporation behaviors of evaporation rate,oscillation amplitude and oscillation frequency of deionized water droplet under different electric fields and ambient gases were investigated,and the velocity distribution of ion wind field was also measured.The results show that when the voltage is lower than the corona voltage,the electric field force can reduce the droplet evaporation rate.When the voltage is higher than the corona voltage,the formation of ion wind can strengthen the droplet evaporation.Both of the increases in voltage and gas ions mobility can augment the ionic wind speed,which intensifies the droplet oscillation and increases the droplet evaporation rate.Compared with the natural evaporation of droplet,the maximum enhancement ratio of droplet evaporation rate under the action of ion wind can reach 9.89.With the increasing of voltage,the ion wind changes from the unstable status to the stable status.
Author 赵天岳
田加猛
许浩洁
王军锋
左磊
AuthorAffiliation 江苏大学 能源与动力工程学院, 江苏 镇江 212013
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Author_FL ZHAO Tianyue
ZUO Lei
XU Haojie
WANG Junfeng
TIAN Jiameng
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  fullname: 王军锋
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  fullname: 左磊
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DocumentTitle_FL Oscillating evaporation characteristics of droplets under action of ion wind
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Issue 2
Keywords 非均匀电场
振荡特性
evaporation characteristic
droplet
oscillation characteristic
电晕离子风
ambient gas
蒸发特性
环境气体
non-uniform electric field
液滴
corona wind
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PublicationTitle 江苏大学学报（自然科学版）
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Snippet TK124; 设计搭建了离子风作用下液滴蒸发试验装置,研究了不同电场和环境气体中去离子水液滴的蒸发速率、振幅和振荡频率等动态蒸发行为参数,并测量了离子风的流场速度分布.结...
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Title 离子风作用下液滴的振荡蒸发特性
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