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平行双射流场纳米颗粒的形成与凝聚的研究

尹招琴 林建忠 周锟

尹招琴, 林建忠, 周锟. 平行双射流场纳米颗粒的形成与凝聚的研究[J]. 应用数学和力学, 2008, 29(2): 140-148.
引用本文: 尹招琴, 林建忠, 周锟. 平行双射流场纳米颗粒的形成与凝聚的研究[J]. 应用数学和力学, 2008, 29(2): 140-148.
YIN Zhao-qin, LIN Jian-zhong, ZHOU Kun. Research on the Nucleation and Coagulation of Nanoparticles in the Parallel Twin Jets[J]. Applied Mathematics and Mechanics, 2008, 29(2): 140-148.
Citation: YIN Zhao-qin, LIN Jian-zhong, ZHOU Kun. Research on the Nucleation and Coagulation of Nanoparticles in the Parallel Twin Jets[J]. Applied Mathematics and Mechanics, 2008, 29(2): 140-148.

平行双射流场纳米颗粒的形成与凝聚的研究

基金项目: 国家科技部重大基础研究前期研究专项资助项目(2005CCA06900)
详细信息
    作者简介:

    尹招琴(1976- ),女,浙江人,博士生;林建忠,教授(联系人.Tel:+86-571-86836009;Fax:+86-571-87951464;E-mail:jzlin@sfp.zju.edu.cn).

  • 中图分类号: O359

Research on the Nucleation and Coagulation of Nanoparticles in the Parallel Twin Jets

  • 摘要: 对平行双射流中H2SO4蒸气扩散进行了大涡模拟,给出了硫酸/水系统成核生成纳米颗粒及颗粒的凝聚过程中颗粒的分布特性,分析了燃料中硫的浓度、环境相对湿度以及射流Reynolds数对于颗粒浓度和粒径分布的影响.结果表明,硫酸/水系统会成核生成大量的纳米颗粒,在双管射流的中间和射流场周围,颗粒具有较高的浓度;颗粒的凝聚过程使颗粒的数量减少、直径变大;随着硫的浓度的增加,流场中的颗粒浓度有明显增加,而成核后形成的颗粒直径减小;环境湿度和Reynolds数的增大,有利于成核过程,因而导致形成更多的颗粒.
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出版历程
  • 收稿日期:  2006-05-16
  • 修回日期:  2007-12-25
  • 刊出日期:  2008-02-15

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