Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2006, Vol. 17 ›› Issue (3): 185 doi: 10.1016/S1001-8042(06)60035-3

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Analysis of flow instabilities in forced-convection steam generator

WU Ge-Ping QIU Sui-Zheng SU Guang-Hui JIA Dou-Nan   

  1. State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China
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WU Ge-Ping QIU Sui-Zheng SU Guang-Hui JIA Dou-Nan. Analysis of flow instabilities in forced-convection steam generator.Nuclear Science and Techniques, 2006, 17(3): 185     doi: 10.1016/S1001-8042(06)60035-3

Abstract: Because of the practical importance of two-phase instabilities, substantial efforts have been made to date to understand the physical phenomena governing such instabilities and to develop computational tools to model the dynamics. The purpose of this study is to present a numerical model for the analysis of flow-induced instabilities in forced-convection steam generator. The model is based on the assumption of homogeneous two-phase flow and ther-modynamic equilibrium of the phases. The thermal capacity of the heater wall has been included in the analysis. The model is used to analyze the flow instabilities in the steam generator and to study the effects of system pressure, mass flux, inlet temperature and inlet/outlet restriction, gap size, the ratio of do/di, and the ratio of qi/qo on the system be-havior.

Key words: Steam generator, Forced convection, Flow instability