收藏本站
收藏 | 投稿 | 手机打开
二维码
手机客户端打开本文

Influence of water vapor concentration on discharge dynamics and reaction products of underwater discharge within a He/H_2O-filled bubble at atmospheric pressure

马圣然  晏雯  毕振华  王宏志  宋颖  王德真  
【摘要】:In this study, a two-dimensional fluid model is proposed to simulate the underwater discharge in a He/H_2O-filled bubble at atmospheric pressure. The molar fraction of water vapor is varied in the range of 0.01%–1% to investigate the dependence of discharge dynamics and reaction products on water vapor concentration(WVC). The numerical results show that most properties of the discharge sensitively depend on the WVC. The increase of WVC leads to an increase in the electron density and discharge propagation velocity, which is attributed to Penning ionization between He*and H_2O. The main positive ion switches from He+to H_2O~+, while the WVC increases from 0.01% to 1%. The dominant reactive oxygen species is OH, whose peak density is about two orders of magnitude higher than that of O. Besides, the densities of OH and O radicals increase with the increasing WVC. It is shown that the formation mechanism of O radicals is significantly affected by the WVC. The dominant reaction creating O radicals changes from the charge exchange between He+2 and H_2O to the electron impact dissociation of H_2O as the WVC increases from 0.01% to 1%. This study is helpful for better understanding the application of non-thermal plasmas discharges in water, such as biomedical, environmental engineering.

知网文化
【相似文献】
中国期刊全文数据库 前19条
1 邓文祥 ,杨同盛 ,马凤岐;RESEARCH AND TECHNICAL NOTES FOCUSED GAIN OF FOCUSED LIQUID-FILLED SPHERE AND ITS FREQUENCY RESPONSE AS A FUNCTION OF PULSE LENGTH AND WALL THICKNESS OF SPHERE[J];Chinese Journal of Acoustics;1983年03期
2 鲍海泓;靳伟;何海律;;Tuning of group delay with stimulated Raman scattering-induced dispersion in gas-filled optical fiber[J];Chinese Optics Letters;2020年06期
3 ;Acoustic scattering from a fluid-filled finite cylindrical shell in water:Ⅰ.Theory[J];Chinese Journal of Acoustics;2011年03期
4 徐薇;彭江英;HE Jian;ZHOU Menghan;YANG Junyou;FU Liangwei;;Lattice Thermal Transport in Double-filled Skutterudites In_(0.1)Yb_yCo_4Sb_(12)[J];Journal of Wuhan University of Technology(Materials Science Edition);2013年04期
5 张永欣;梁生;余倩卿;廉正刚;董梓年;王旋;林裕勤;邹郁祁;邢坤;梁柳雁;赵小艇;涂立静;;Hollow and filled fiber bragg gratings in nano-bore optical fibers[J];Chinese Physics B;2019年07期
6 ;Analysis of circumferential waves on a water-filled cylindrical shell[J];Chinese Journal of Acoustics;2012年02期
7 单鸣雷;陈秉岩;姚澄;韩庆邦;朱昌平;杨雨;;Electric characteristic and cavitation bubble dynamics using underwater pulsed discharge[J];Plasma Science and Technology;2019年07期
8 张莹珞;王英民;黄爱萍;胡欣;;Study on reflection characteristics of underwater target and laser echo power[J];Optoelectronics Letters;2020年02期
9 ;New concepts and their applications in underwater acoustic warfare simulation system[J];声学技术;2004年S1期
10 ;Analysis and implementation of cross sync period underwater acoustical positioning techniques for underwater targets[J];Chinese Journal of Acoustics;1996年04期
11 ;The WKBZ mode approach to sound propagation in the two-axis underwater channel[J];Chinese Journal of Acoustics;1997年03期
12 ;Acoustic scattering from fluid-filled finite cylindrical shell in water:Ⅱ.Experiment[J];Chinese Journal of Acoustics;2011年03期
13 郭晓乐;杨坤德;史阳;段睿;;An underwater acoustic data compression method based on compressed sensing[J];Journal of Central South University;2016年08期
14 李伟;陈国明;张传荣;刘涛;;Simulation Analysis and Experimental Study of Defect Detection Underwater by ACFM Probe[J];China Ocean Engineering;2013年02期
15 ;Traveling wave tube measurements for low-frequency properties of underwater acoustic materials[J];Chinese Journal of Acoustics;2007年04期
16 ;A method to accurately measure and respond to an underwater sound pulse in a wide dynamic range[J];Chinese Journal of Acoustics;1994年04期
17 ;Local-linear-prediction analysis for underwater acoustic target radiated noise[J];Chinese Journal of Acoustics;2002年04期
18 ;Experimental researches on underwater target scattering properties in non-incident direction[J];Chinese Journal of Acoustics;1997年02期
19 ;Investigation of acoustic scale effects and boundary effects for the similitude model of underwater complex shell-structure[J];Journal of Marine Science and Application;2007年01期
中国重要会议论文全文数据库 前5条
1 ;Research on the reverberation absorption coeeficient of material measured by underwater reverberation field method[A];2011年全国压电和声波理论及器件应用研讨会报告程序册及摘要集[C];2011年
2 ;An Integrated System for Underwater Warfare Simulation[A];2009中国控制与决策会议论文集(3)[C];2009年
3 Bingsheng Zhang;Tianhe Xu;Ruru Gao;;Research on acoustic velocity correction algorithm in underwater acoustic positioning[A];第九届中国卫星导航学术年会论文集——S11 PNT新概念、新方法及新技术[C];2018年
4 GAO Si-ze;NI Bang-fa;ZHANG Gui-ying;XIAO Cai-jin;LIU Cun-xiong;CHEN Zhe;NIE Peng;LIU Chao;ZHAO Chang-jun;;Preliminary Design of a System for Picking up Audio-Signals From Bubble Detectors GAO Si-ze~1,NI Bang-fa,ZHANG Gui-ying,XIAO Cai-jin,LIU Cun-xiong, CHEN Zhe~1,NIE Peng,LIU Chao~1,ZHAO Chang-jun (1.College of Physics Science and Engineering Technology,Guang[A];Annual Report of China Institute of Atomic Energy 2009[C];2010年
5 ZHAO Chang-jun;ZHANG Gui-ying;XIAO Cai-jin;LIU Cun-xiong;NIE Peng;CHEN Zhe;GAO Si-ze;LIU Chao;Ni Bang-fa;;Experimental Design of Elastic Solid Medium of Neutron Bubble Detector[A];Annual Report of China Institute of Atomic Energy 2009[C];2010年
中国知网广告投放
 快捷付款方式  订购知网充值卡  订购热线  帮助中心
  • 400-819-9993
  • 010-62982499
  • 010-62783978