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Volume 39 Issue 2
Jun.  2022
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Minghan HE, Dajun FAN, Rongjie LI, Xianwen LI, Xukai FAN, Cunfeng YAO, Long GU. Study on the Cross-flow Characteristics of Wire-wrapped Fuel Bundle Channel in CiADS[J]. Nuclear Physics Review, 2022, 39(2): 258-265. DOI: 10.11804/NuclPhysRev.39.2021072
Citation: Minghan HE, Dajun FAN, Rongjie LI, Xianwen LI, Xukai FAN, Cunfeng YAO, Long GU. Study on the Cross-flow Characteristics of Wire-wrapped Fuel Bundle Channel in CiADS[J]. Nuclear Physics Review, 2022, 39(2): 258-265. DOI: 10.11804/NuclPhysRev.39.2021072
shu

Study on the Cross-flow Characteristics of Wire-wrapped Fuel Bundle Channel in CiADS

  • 1.

    Institution of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China

  • 2.

    School of Nuclear Science and Technology, University of Chinese Academy of Science, Beijing 100049, China

  • 3.

    Advanced Energy Science and Technology Guangdong Laboratory, Huizhou 516000, Guangdong, China

  • 4.

    School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China

Funds: National Key R&D Program of China((2020YFB1902100) ；Special fund of Shanghai Municipal Economic and Information Commission(GYQJ-2018-2-02)
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  • Corresponding author:

    Long GU, Email: gulong@impcas.ac.cn

  • Received Date: October 08, 2021
  • Revised Date: November 25, 2021
    Graphical Abstract
    • Abstract
  • CiADS subcritical reactor used LBE as coolant and closed fuel assembly mixed by wire wrapped. The wire can make the working fluid cross-mixing, enhancing the momentum exchange between coolant in different subchannel. This study generated structured and unstructured mesh by software ANSYS ICEM and STAR-CCM+, analyzed the cross-flow characteristics in CiADS subcritical reactor and investigated the influence caused by using different mesh structure in CFD simulation. The calculation result showed: comparing with unstructured mesh, the cross g between subchannel calculation in structured mesh is closer to the result in LES. The friction factor calculated by structured mesh is closest to the prediction of UCTD formula, and the factor calculated by unstructured mesh is smaller than all empirical formula. In addition, this research refined existed empirical formula, which could predict cross-flow characteristics more accurate. The conclusions provided a new way refining subchannel progress, and provide data support for thermohydraulic design and analysis in CiADS fuel assembly.
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    • References (23)
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