| 水蒸气超音速非平衡流动的变压凝结特性 |
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| 引用本文： | 沈胜强,杨勇,张琨,宋煜.水蒸气超音速非平衡流动的变压凝结特性[J].化工学报,2010,61(4):820-824. |
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| 作者姓名： | 沈胜强 杨勇 张琨 宋煜 |
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| 作者单位： | 大连理工大学海洋能源利用与节能教育部重点实验室，辽宁 大连 116024 |
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| 摘 要： | 对水蒸气超音速非平衡凝结流动进行了数值模拟,研究了水蒸气超音速流动过程中的非平衡相变及凝结激波现象,揭示了激波与核化凝结流动之间相互作用的非平衡流动规律。着重研究了水蒸气超音速非平衡凝结相变的变压凝结特性,归纳了压力对核化凝结、激波形态的影响规律,给出了进口蒸汽压力变化对蒸汽过饱和度、蒸汽核化率等凝结参数的作用规律。
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| 关 键 词： | 水蒸气 超音速流动 凝结 激波 |
| 收稿时间： | 2009-9-3 |
| 修稿时间： | 2010-1-15
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Condensation characteristics of supersonic non-equilibrium steam flow under different pressures |
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| SHEN Shengqiang,YANG Yong,ZHANG Kun,SONG Yu.Condensation characteristics of supersonic non-equilibrium steam flow under different pressures[J].Journal of Chemical Industry and Engineering(China),2010,61(4):820-824. |
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| Authors: | SHEN Shengqiang YANG Yong ZHANG Kun SONG Yu |
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| Abstract: | The supersonic non-equilibrium steam flow with spontaneous condensation was studied numerically.Based on the numerical simulation,the non-equilibrium thermodynamic phenomena such as the homogenous nucleation and the condensation shock were investigated,and the interaction between the homogenous condensation and the shock was revealed.The research focused on the condensation characteristics of non-equilibrium phase change under different pressures.The influence of inlet steam pressure on the homogenous nucleation and the condensation shock and the impact of pressure change on the thermodynamic characteristic such as super saturation ratio and nucleation rate were investigated. |
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| Keywords: | steam supersonic flow condensation shock |
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