传质对液体中振荡汽泡阻尼机制的影响。
Effects of mass transfer on damping mechanisms of vapor bubbles oscillating in liquids.
作者信息
Zhang Yuning, Gao Yuhang, Guo Zhongyu, Du Xiaoze
机构信息
Key Laboratory of Condition Monitoring and Control for Power Plant Equipment (Ministry of Education), School of Energy, Power and Mechanical Engineering, North China Electric Power University, Beijing 102206, China.
Key Laboratory of Condition Monitoring and Control for Power Plant Equipment (Ministry of Education), School of Energy, Power and Mechanical Engineering, North China Electric Power University, Beijing 102206, China.
出版信息
Ultrason Sonochem. 2018 Jan;40(Pt A):120-127. doi: 10.1016/j.ultsonch.2017.07.004. Epub 2017 Jul 6.
The damping mechanisms play an important role in the behavior of vapor bubbles. In the present paper, effects of mass transfer on the damping mechanisms of oscillating vapor bubbles in liquids are investigated within a wide range of parameter zone (e.g. in terms of frequency and bubble Péclet number). Results of the vapor bubbles are also compared with those of the gas bubbles. Our findings reveal that the damping mechanisms of vapor bubbles are significantly affected by the mass transfer especially in the regions with small and medium bubble Péclet number. Comparing with the gas bubbles, the contributions of the mass-transfer damping mechanism for the vapor bubble case are quite significant, being the dominant damping mechanism in a wide region.
阻尼机制在蒸汽泡的行为中起着重要作用。在本文中，研究了在广泛的参数区域（例如频率和气泡佩克莱数方面）内质量传递对液体中振荡蒸汽泡阻尼机制的影响。还将蒸汽泡的结果与气泡的结果进行了比较。我们的研究结果表明，蒸汽泡的阻尼机制尤其在中小气泡佩克莱数区域受到质量传递的显著影响。与气泡相比，质量传递阻尼机制对蒸汽泡情况的贡献相当显著，在很宽的区域内是主要的阻尼机制。
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