[1]柴明明,李 磊,陆晓霞,等.封闭容器内液体间界面不稳定对混合过程的影响[J].南京理工大学学报(自然科学版),2016,40(05):554.[doi:10.14177/j.cnki.32-1397n.2016.40.05.009]
 Chai Mingming,Li Lei,Lu Xiaoxia,et al.Influence of interface instability on liquid mixing process in closed container[J].Journal of Nanjing University of Science and Technology,2016,40(05):554.[doi:10.14177/j.cnki.32-1397n.2016.40.05.009]
点击复制

封闭容器内液体间界面不稳定对混合过程的影响
分享到:

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

卷:
40卷
期数:
2016年05期
页码:
554
栏目:
出版日期:
2016-10-30

文章信息/Info

Title:
Influence of interface instability on liquid mixing process in closed container
文章编号:
1005-9830(2016)05-0554-06
作者:
柴明明1李 磊12陆晓霞1赵守田1
1.国民核生化灾害防护国家重点实验室,北京 102205; 2.清华大学 航天航空学院,北京 100084
Author(s):
Chai Mingming1Li Lei12Lu Xiaoxia1Zhao Shoutian1
1.State Key Laboratory of NBC Protection for Civilian,Beijing 102205,China; 2.School of Aerospace Engineering,Tsinghua University,Beijing 100084,China
关键词:
高速摄影 平面激光诱导荧光 界面不稳定性 Atwood数 长细比
Keywords:
high-speed photography planar laser induced fluorescence interface instability Atwood numbers aspect ratios
分类号:
O359
DOI:
10.14177/j.cnki.32-1397n.2016.40.05.009
摘要:
该文采用高速摄影和平面激光诱导荧光(PLIF)技术,对圆柱形容器中界面不稳定性对液体混合的影响进行实验研究。使用多相流和湍流模型计算了界面不稳定性的发展情况,分析了不同Atwood数和容器长细比下液体界面不稳定性对液体混合过程的影响。研究发现,界面不稳定性的发展有助于液体间的混合,随Atwood数的增大混合时间增大,容器下层液体(重流体)越难混合。长细比越大越有利于混合,当长细比减小时,容器下层轻流体向上翻转,难以形成利于混合的涡,且造成轻流体残留。
Abstract:
The influence of interface instability on the liquid mixing process in a cylinder container is studied experimentally by using the high-speed photography and the planar laser induced fluorescence(PLIF)technology.The evolution of interface instability is calculated by applying the multiphase fluid flow and turbulence models.The influence of different Atwood numbers and aspect ratios on the liquid mixing processes is analyzed.The results show that the evolution of interface instability is helpful for the liquid mixing process.The mixing time increases with the increasing of Atwood numbers,meanwhile the heavy liquid is hard to be mixed on the bottom of container.Entirely,the bigger the aspect ratios are,the better the mixing effects are.As the aspect ratios decreasing,the mixing eddies are hard to form during the rolling over process of the lighter liquid,and some remains of unmixing lighter liquid exist.

参考文献/References:

[1] 游定方,林琅,刘治碧.液体炸药的发展及应用[J].化工技术与开发,2011(1):37-39.
You Dingfang,Lin Lang,Liu Zhibi.Development and application of liquid explosives[J].Technology & Development of Chemical Industry,2011(1):37-39.
[2]Voeobev A.Boussinesq approximation of the Cahn-Hilliard Navier-Stokes equations[J].Physical Review E,2010,82(5):056312.
[3]Voeobev A.Dissolution dynamics of miscible liquid/liquid interfaces[J].Current Opinion in Colloid & Interface Science,2014,19(4):300-308.
[4]Kim J.A continuous surface tension force formulation for diffuse-interface models[J].Journal of Computational Physics,2005,204(2):784-804.
[5]Brackbill J U,Kothe D B,Zemach C.A coutinuum method for modeling surface tension[J].Journal of Computational Physics,1992,100:335-354.
[6]王文坦,张梦雪,赵述芳.激光诱导荧光技术在液体混合可视化研究中的应用[J].化工学报,2013,64(3):771-778.
Wang Wentan,Zhang Mengxue,Zhao Shufang.Application of laser-induced fluorescence technique in visualization of liquid mixing process[J].CIESC Journal,2013,64(3):771-778.
[7]Kim J.Phase field computations for ternary fluid flows[J].Computer Methods in Applied Mechanics and Engineering,2007,196(45-48):4779-4788.
[8]Sharp D H.An overview of Rayleigh-Taylor instability[J].Physica D:Phenomena,1984,12(1-3):3-10.
[9]王继海.二维非定常流和激波[M].北京:科学出版社,1994.
[10]李熙,朱华庆.瑞利-泰勒不稳定性的实验研究及数值模拟[J].科技导报,2005,23(11):30-32.
Li Xi,Zhu Huaqing.Experimantal and numerical study of Rayleigh-Taylor instabilities[J].Science & Technology Review,2005,23(11):30-32.
[11]Kim J.Phase-field models for multi-component fluid flows[J].Communications in Computational Physics Commun,2012,12(3):613-661.

相似文献/References:

[1]徐 锐,杨国来,陈 强,等.高速摄影技术在火炮运动学分析中的测试误差研究[J].南京理工大学学报(自然科学版),2015,39(05):523.
 Xu Rui,Yang Guolai,Chen Qiang,et al.Error analysis of high speed photography in measuring kinematic parameter of artillery[J].Journal of Nanjing University of Science and Technology,2015,39(05):523.

备注/Memo

备注/Memo:
收稿日期:2015-11-07 修回日期:2016-02-18
作者简介:柴明明(1991-),男,硕士生,主要研究方向:旋转充液系统的液体混合,E-mail:chmm2009@mail.ustc.edu.cn; 通讯作者:陆晓霞(1981-),女,博士,助理研究员,主要研究方向:液体爆炸分散,E-mail:lovescienceis@126.com。
引文格式:柴明明,李磊,陆晓霞,等.封闭容器内液体间界面不稳定对混合过程的影响[J].南京理工大学学报,2016,40(5):554-559.
投稿网址:http://zrxuebao.njust.edu.cn
更新日期/Last Update: 2016-10-30