Nuclear Power Engineering, Volume. 46, Issue 4, 1(2025)

Development Progress of CorTAF: A Three-Dimensional Cross-Scale Multi-Physics Coupling Analysis Code for Nuclear Reactor Core

Su Guanghui1,2, Dong Zhengyang1,2, Liu Kai1,2, Wang Mingjun1,2, Tian Wenxi1,2, and Qiu Suizheng1,2
Author Affiliations
  • 1School of Nuclear Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, China
  • 2Shaanxi Key Laboratory of Advanced Nuclear Energy and Technology, Xi'an, 710049, China
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    The reactor core is a critical component of nuclear power systems with a complex geometric structure, and it experiences strong coupling effects between various physical fields. High-precision thermal-hydraulic and multi-physics coupling analysis of the core is essential for ensuring the design and safety analysis of advanced nuclear power systems. The Nuclear Reactor Thermal-Hydraulic Laboratory (NuTHeL) at Xi'an Jiaotong University has built a core-heat-flow-deposition multi-physics coupling analysis model, and has independently developed the CorTAF Three-Dimensional Cross-Scale Multi-Physics Coupling Analysis Code for Nuclear Reactor Core, which allows CFD-based multi-physics calculations and predictions for the entire pressure vessel. Validation and verification work has also been conducted based on international benchmark problems. In recent years, the research team has continually developed and refined the mathematical and physical models of the code. Currently, the CorTAF code supports cross-scale coupling calculations for multiple reactor types (PWR, LFR, SFR), physical fields (Neutronics, Thermal hydraulic, Deposition), and system structures (Core, Lower plenum, Upper plenum). This paper reviews the development process of the CorTAF series codes, presents their main functions and applications in PWR calculation, summarizes the current computational results, and discusses the future direction of the program's development.

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    Su Guanghui, Dong Zhengyang, Liu Kai, Wang Mingjun, Tian Wenxi, Qiu Suizheng. Development Progress of CorTAF: A Three-Dimensional Cross-Scale Multi-Physics Coupling Analysis Code for Nuclear Reactor Core[J]. Nuclear Power Engineering, 2025, 46(4): 1

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    Paper Information

    Received: May. 9, 2025

    Accepted: Aug. 25, 2025

    Published Online: Aug. 25, 2025

    The Author Email:

    DOI:10.13832/j.jnpe.2025.05.0206

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