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Large Eddy Simulation of the Inlet Cross-Flow in the CiADS Heat Exchanger Using the Lattice Boltzmann Method

Author

Listed:
  • Lu Liu

    (Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
    School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China)

  • Sicheng Wang

    (Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
    School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China)

  • Dawei Wang

    (Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
    School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China)

  • Dajun Fan

    (Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
    School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China)

  • Long Gu

    (Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
    School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
    School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China)

Abstract

The liquid lead-bismuth eutectic (LBE) is the coolant of the heat exchanger in China initiative Accelerator Driven System, which may have a risk of structural failure due to the washout of the coolant in the inlet of the heat exchanger. It is necessary to study the mechanical properties of the heat exchanger bundles of CiADS, especially the fatigue life of the bundle structure in the transverse flow of the LBE. The numerical simulation is the Lattice Boltzmann method combined with the large eddy simulation by Python codes. The velocity distribution of the flow field and the time domain characteristics of the heat exchanger bundles’ force are calculated, and the frequency domain characteristics of the heat exchanger bundles’ vibration are obtained by Fourier transform. The bundles vibrate at high cycle fatigue in turbulent flow at high Reynolds number. The transverse flow of LBE does not affect the fatigue life of the bundle. No structural failure occurs in the CiADS heat exchanger due to the transverse flow of LBE.

Suggested Citation

  • Lu Liu & Sicheng Wang & Dawei Wang & Dajun Fan & Long Gu, 2023. "Large Eddy Simulation of the Inlet Cross-Flow in the CiADS Heat Exchanger Using the Lattice Boltzmann Method," Sustainability, MDPI, vol. 15(19), pages 1-14, October.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:19:p:14627-:d:1256060
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    References listed on IDEAS

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    1. Zeynep Clulow & David M. Reiner, 2022. "Democracy, Economic Development and Low-Carbon Energy: When and Why Does Democratization Promote Energy Transition?," Sustainability, MDPI, vol. 14(20), pages 1-22, October.
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