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 ›› 2017, Vol. 28 ›› Issue (10): 146 doi: 10.1007/s41365-017-0304-x

• NUCLEAR ENERGY SCIENCE AND ENGINEERING • Previous Articles     Next Articles

An assessment of k-ε turbulence models for gas distribution analysis

Muhammad Saeed 1 , Ji-Yang Yu 1 , Aniseh Ahmed Atef Abdalla 1 , Xian-Ping Zhong 1 , Mahmood Ahmad Ghazanfar 1   

  1. 1 Department of Engineering Physics, Tsinghua University, Beijing 100084, China
  • Contact: Muhammad Saeed
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Muhammad Saeed, Ji-Yang Yu, Aniseh Ahmed Atef Abdalla, Xian-Ping Zhong, Mahmood Ahmad Ghazanfar. An assessment of k-ε turbulence models for gas distribution analysis.Nuclear Science and Techniques, 2017, 28(10): 146     doi: 10.1007/s41365-017-0304-x


This paper presents the gas distribution analysis by injecting air fountain into the containment and simulations with the HYDRAGON code. Turbulence models of standard k-ε (SKE), re-normalization group k-ε (RNG) and a realizable k-ε (RLZ) are used to assess the effects on the gas distribution analysis during a severe accident in a nuclear power plant. By comparing with experimental data, the simulation results of the RNG and SKE turbulence models agree well with the experimental data on the prediction of dimensionless density distributions. The results illustrate that the turbulence model choice had a small effect on the simulation results, particularly the region near to the air fountain source.

Key words: Turbulence model, Hydrogen combustion, Nuclear power, Plant accident, HYDRAGON, Air fountain