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NUCLEAR TECHNIQUES, Volume. 48, Issue 4, 040605(2025)

Reduced-order analysis model for thermal stratification in the upper plenum of lead-bismuth fast reactors based on improved DMD and LSTM

Congyi WEN, Junjie DENG, Zijing LIU, Wei LI, and Pengcheng ZHAO*
Author Affiliations
  • School of Nuclear Science and Technology, University of South China, Hengyang 421000, China
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    [2] Dong Z Y, Qiu H R, Wang M J et al. Numerical simulation on the thermal stratification in the lead pool of lead-cooled fast reactor (LFR)[J]. Annals of Nuclear Energy, 174, 109176(2022).

    [3] He S P, Wang M J, Zhang J et al. Numerical simulation of three-dimensional flow and heat transfer characteristics of liquid lead–bismuth[J]. Nuclear Engineering and Technology, 53, 1834-1845(2021).

    [4] Luo X, Wang C, Zou Z R et al. Development and application of a multi-physics and multi-scale coupling program for lead-cooled fast reactor[J]. Nuclear Science and Techniques, 33, 18(2022).

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    [6] YANG Tao, ZHAO Pengcheng, ZHAO Yanan et al. Development of reduced-order thermal stratification model for upper plenum of lead-bismuth fast reactor based on CFD[J]. Nuclear Power Engineering, 44, 48-53(2023).

    [7] HAN Yiyu, HE Yuanyuan, TIAN Ye et al. Dynamic mode decomposition of the unsteady flowfield in a scramjet[J]. Aerodynamic Research & Experiment, 2023, 92-97.

    [8] ZHANG Pengfei, PAN Jingru, FENG Feng. Modal decomposition and reconfiguration of gas-liquid two-phase unsteady flow in A centrifugal pump by DMD[J]. Chinese Journal of Hydrodynamics, 38, 808-817(2023).

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    [11] Hemati M S, Williams M O, Rowley C W. Dynamic mode decomposition for large and streaming datasets[J]. Physics of Fluids, 26, 111701(2014).

    [12] LIU Gang, HAO Shiyuan, ZHU Zhangchen et al. Research on rapid calculation method of transient temperature rise of winding of dynamic mode decomposition-adaptive time stepping oil-immersed power transformer[J]. Transactions of China Electrotechnical Society, 39, 3895-3906(2024).

    [13] SHI Jiannan, ZOU Junzhong, ZHANG Jian et al. Research of stock price prediction based on DMD-LSTM model[J]. Application Research of Computers, 37, 662-666(2020).

    [14] Williams M O, Kevrekidis I G, Rowley C W. A data–driven approximation of the koopman operator: extending dynamic mode decomposition[J]. Journal of Nonlinear Science, 25, 1307-1346(2015).

    [15] ZHANG Hu, XU Chang, WEI Shangshang et al. Study on wake model of wind turbine based on sparsity promoting dynamic mode decomposition[J]. Acta Energiae Solaris Sinica, 45, 681-690(2024).

    [16] Schmid P J. Dynamic mode decomposition of numerical and experimental data[J]. Journal of Fluid Mechanics, 656, 5-28(2010).

    [17] Duke D, Soria J, Honnery D. An error analysis of the dynamic mode decomposition[J]. Experiments in Fluids, 52, 529-542(2012).

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    Congyi WEN, Junjie DENG, Zijing LIU, Wei LI, Pengcheng ZHAO. Reduced-order analysis model for thermal stratification in the upper plenum of lead-bismuth fast reactors based on improved DMD and LSTM[J]. NUCLEAR TECHNIQUES, 2025, 48(4): 040605

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    Paper Information

    Category: NUCLEAR ENERGY SCIENCE AND ENGINEERING

    Received: Apr. 22, 2024

    Accepted: --

    Published Online: Jun. 3, 2025

    The Author Email: Pengcheng ZHAO (赵鹏程)

    DOI:10.11889/j.0253-3219.2025.hjs.48.240147

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology