| 液滴蒸发对周围气相场的影响域特性分析 |
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| 引用本文： | 赵富龙,颜笑,孟涛,薄涵亮.液滴蒸发对周围气相场的影响域特性分析[J].工程热物理学报,2020(2):448-454. |
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| 作者姓名： | 赵富龙 颜笑 孟涛 薄涵亮 |
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| 作者单位： | 哈尔滨工程大学核科学与技术学院;清华大学核能与新能源技术研究院 |
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| 基金项目： | 先进反应堆工程与安全教育部重点实验室开放基金(No.ARES-2018-02);核反应堆系统设计技术重点实验室基金(No.HTKFKT-09-2018004) |
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| 摘 要： | 液滴在气体中运动蒸发的过程中,两相间会发生相互作用。为了弄清液滴对气相场的影响,基于液滴在气体环境中蒸发过程的现象和机理解释,提出液滴蒸发的影响域的概念,定义了影响域半径,并通过数值计算分析了不同条件下的影响域特性。结果表明,影响域内,由于液滴的存在使得其周围气相场参数变化较为剧烈;其他条件相同时,无量纲影响域半径几乎是一个定值。提出的影响域概念,对于研究气液两相间的相互作用机制具有重要意义。
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| 关 键 词： | 液滴蒸发 影响域 相间作用 两相耦合 温度梯度 |
Analysis of Influence Region Characteristics of the Gas Surrounding the Evaporating Droplet |
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| ZHAO Fu-Long,YAN Xiao,MENG Tao,BO Han-Liang.Analysis of Influence Region Characteristics of the Gas Surrounding the Evaporating Droplet[J].Journal of Engineering Thermophysics,2020(2):448-454. |
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| Authors: | ZHAO Fu-Long YAN Xiao MENG Tao BO Han-Liang |
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| Institution: | (College of Nuclear Science and Technology,Harbin Engineering University,Harbin 150001,China;Institute of Nuclear and New Energy Technology,Tsinghua University,Beijing 100084,China) |
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| Abstract: | When the evaporating droplet moves in the gas,the droplet and gas will interact with each other.To figure out the concept of the influence region of the evaporating droplet,the radius of the influence region is defined.The characteristics of the influence region are analyzed based on the numerical simulation at various cases.The results indicate that within the influence region,the parameters of the gas flow field vary greatly owing to the effect of the droplet.When the other conditions are the same,the dimensionless radius of the influence region is almost a constant.The present influence region concept is significant for the investigation of the two phase interaction mechanism. |
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| Keywords: | droplet evaporation influence region phase interaction two phase coupling temperature gradient |
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