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Heat Transfer Research
Fator do impacto: 0.404 FI de cinco anos: 0.8 SJR: 0.264 SNIP: 0.504 CiteScore™: 0.88

ISSN Imprimir: 1064-2285
ISSN On-line: 2162-6561

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Heat Transfer Research

DOI: 10.1615/HeatTransRes.2012005117
pages 633-650

INVESTIGATION OF THE PRESSURE CHARACTERISTICS OF A SUPERSONIC STEAM FLOW WITH NONEQUILIBRIUM PHASE CHANGE

Yong Yang
School of Energy and Power Engineering, Dalian University of Technology, Dalian 116024, P. R. China
Sheng Qiang Shen
Dalian University of Technology
Xingsen Mu
Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education, Key Laboratory for Desalination of Liaoning Province, School of Energy and Power Engineering, Dalian University of Technology, Dalian 116024, China
Rui Liu
School of Energy and Power Engineering, Dalian University of Technology, Dalian 116024, P. R. China
Shihe Zhou
School of Energy and Power Engineering, Dalian University of Technology, Dalian 116024, P. R. China

RESUMO

In the present study, a supersonic nonequilibrium steam flow with spontaneous condensation was studied numerically using a conservation-type two-dimensional compressible numerical model for a converging−diverging nozzle. The research explored the effect of steam pressure at the onset of nucleation and the intensity of condensation shock in the converging−diverging nozzle; however, the main focus was on the pressure characteristics of a nonequilibrium phase change. This study used simulation to show the influence of changes in the inlet pressure on the thermodynamic processes of spontaneous homogenous nucleation and the condensation shock in a supersonic steam flow. Additional research covered the impact of pressure changes on the thermodynamic properties such as the supersaturation ratio and nucleation rate.


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