Condensation characteristics of supersonic non-equilibrium steam flow under different pressures

SHEN Shengqiang; YANG Yong; ZHANG Kun; SONG Yu

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Condensation characteristics of supersonic non-equilibrium steam flow under different pressures

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- Condensation characteristics of supersonic non-equilibrium steam flow under different pressures
- CIESC Journal Issue 4, Pages: 820-824(2010)
- 作者机构：
  
  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
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：05 April 2010，
  
  Published：05 April 2010
- 稿件说明：
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SHEN Shengqiang, YANG Yong, ZHANG Kun, et al. Condensation characteristics of supersonic non-equilibrium steam flow under different pressures[J]. CIESC Journal, 2010, (4): 820-824.
DOI：

SHEN Shengqiang, YANG Yong, ZHANG Kun, et al. Condensation characteristics of supersonic non-equilibrium steam flow under different pressures[J]. CIESC Journal, 2010, (4): 820-824. DOI：

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。

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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