POD Order Reduction Based on LBM Neutron Diffusion Equation

Chi Honghang; Wang Yahui; Ma Yu

doi:10.13832/j.jnpe.2025.S1.0008

Volume 46 Issue S1

Jul. 2025

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Chi Honghang, Wang Yahui, Ma Yu. POD Order Reduction Based on LBM Neutron Diffusion Equation[J]. Nuclear Power Engineering, 2025, 46(S1): 8-12. doi: 10.13832/j.jnpe.2025.S1.0008

Citation:

Chi Honghang, Wang Yahui, Ma Yu. POD Order Reduction Based on LBM Neutron Diffusion Equation[J]. Nuclear Power Engineering, 2025, 46(S1): 8-12. doi: 10.13832/j.jnpe.2025.S1.0008

Chi Honghang, Wang Yahui, Ma Yu. POD Order Reduction Based on LBM Neutron Diffusion Equation[J]. Nuclear Power Engineering, 2025, 46(S1): 8-12. doi: 10.13832/j.jnpe.2025.S1.0008

Citation:

Chi Honghang, Wang Yahui, Ma Yu. POD Order Reduction Based on LBM Neutron Diffusion Equation[J]. Nuclear Power Engineering, 2025, 46(S1): 8-12. doi: 10.13832/j.jnpe.2025.S1.0008

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POD Order Reduction Based on LBM Neutron Diffusion Equation

doi: 10.13832/j.jnpe.2025.S1.0008

Sino-French Institute of Nuclear Engineering and Technology, Sun Yat-sen University, Zhuhai, Guangdong, 519082, China

Received Date: 2024-11-10
Rev Recd Date: 2025-03-26
Publish Date: 2025-07-09

Abstract

Abstract

In the unified multi-physics coupling simulation of reactor engineering, the Lattice Boltzmann Method (LBM) has good application prospects as a mature and reliable method. However, the computational resource consumption when calculating complex core structures remains an urgent issue that needs to be addressed. In order to improve computational efficiency and reduce the requirements for computing resources, this paper proposes a proper orthogonal decomposition (POD) reduction method based on the LBM neutron diffusion equation. The corresponding POD reduced-order model for LBM neutron diffusion equation is established, achieving a calculation effect of thousands of times acceleration ratio while ensuring its calculation accuracy.
- Lattice Boltzmann method (LBM),
- Reduced-order model,
- Proper orthogonal decomposition (POD)

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References(14)

References

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