| 恒定电压下水射流相变及其动力学特性 |
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| 引用本文： | 孙永鑫,杨欣,杨嘉祥. 恒定电压下水射流相变及其动力学特性[J]. 黑龙江科技学院学报, 2008, 18(5) |
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| 作者姓名： | 孙永鑫 杨欣 杨嘉祥 |
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| 作者单位： | 哈尔滨理工大学,电气与电子工程学院,哈尔滨,150040 |
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| 摘 要： | 为了解释水射流等离子体电弧发生的前驱现象,利用FLUENT/MHD软件,在直流电压1.0和1.1 kV下,对同轴圆锥态水射流相变反应器中的水--水蒸气相变过程及其动力学特性加以仿真,揭示了气流通道形成过程中,温度、密度、压力、速度等动力学参数及相互之间的影响.结果表明:水射流气体通道形成之初,内部流速整体趋势随时间增大;温度随时间升高,沿轴线方向温度降低.气流通道形成后,热量向反应器内扩散,通道增宽同时温度下降;通道形成之前,静压强有一段突然增高的现象.
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| 关 键 词： | 水射流 相变 动力学特性 数值模拟 |
Phase change and its dynamic characteristic of water jet under constant voltage |
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| SUN Yongxin,YANG Xin,YANG Jiaxiang. Phase change and its dynamic characteristic of water jet under constant voltage[J]. Journal of Heilongjiang Institute of Science and Technology, 2008, 18(5) |
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| Authors: | SUN Yongxin YANG Xin YANG Jiaxiang |
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| Affiliation: | SUN Yongxin,YANG Xin,YANG Jiaxiang(College of Electrical & Electronic Engineering,Harbin University Science Technology,Harbin 150040,China) |
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| Abstract: | This paper presents an attempt to explain precursor phenomena of water jet plasma arc.The paper describes the use of FLUENT/MHD software to simulate water-water vapor phase change and its dynamic characteristics in water jet phase change model with coaxial cone under 1.0 kV and 1.1 kV of DC voltage and provides dynamic characteristic parameters such as temperature,density,pressure and velocity of working fluid as well as their effects in processes of building gas passage.Computing results show that average ... |
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| Keywords: | water jet phase change dynamic characteristic numerical simulation |
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