The Implementation and Efficiency Analysis of Parallel Mesh Mapping based on the Multi-physics Coupling Framework

Tang Qifen; Wang Yuan; Pan Junjie; Qiang Shenglong; Fan Jiakun; Cui Xiantao

doi:10.13832/j.jnpe.2023.03.0231

Volume 44 Issue 3

Jun. 2023

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Tang Qifen, Wang Yuan, Pan Junjie, Qiang Shenglong, Fan Jiakun, Cui Xiantao. The Implementation and Efficiency Analysis of Parallel Mesh Mapping based on the Multi-physics Coupling Framework[J]. Nuclear Power Engineering, 2023, 44(3): 231-236. doi: 10.13832/j.jnpe.2023.03.0231

Citation:

Tang Qifen, Wang Yuan, Pan Junjie, Qiang Shenglong, Fan Jiakun, Cui Xiantao. The Implementation and Efficiency Analysis of Parallel Mesh Mapping based on the Multi-physics Coupling Framework[J]. Nuclear Power Engineering, 2023, 44(3): 231-236. doi: 10.13832/j.jnpe.2023.03.0231

Citation:

Tang Qifen, Wang Yuan, Pan Junjie, Qiang Shenglong, Fan Jiakun, Cui Xiantao. The Implementation and Efficiency Analysis of Parallel Mesh Mapping based on the Multi-physics Coupling Framework[J]. Nuclear Power Engineering, 2023, 44(3): 231-236. doi: 10.13832/j.jnpe.2023.03.0231

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The Implementation and Efficiency Analysis of Parallel Mesh Mapping based on the Multi-physics Coupling Framework

doi: 10.13832/j.jnpe.2023.03.0231

Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu, 610213, China

Received Date: 2022-11-14
Rev Recd Date: 2023-03-05
Publish Date: 2023-06-15

Abstract

Abstract

Refined physical-thermal coupling calculations of reactors can simulate the core behavior more accurately. However, existing analysis programs adopt different discrete formats and mesh divisions when calculating different physical fields, resulting in a complex mesh mapping relationship for the transfer of discrete variables between physical fields. Especially for the refined whole-core modeling, the large-scale mesh mapping will affect the accuracy and efficiency of the coupled system solution. In this paper, based on the self-developed multi-physics coupling framework MORE, the thermal-hydraulic sub-channel software CORTH integrated in MORE, and the Monka program RMC, the whole core refined mesh of the physical-thermal coupling calculation was realized by the method of area decomposition parallel mesh mapping. The mapping time between the million-level structured mesh and unstructured mesh can be reduced to 8 s on 20 cpus, and maximum parallel mapping efficiency reaches 77.96% on 10 cpus, which improves the coupling calculation efficiency.
- Multi-physics coupling framework,
- Region decomposition,
- Parallel mesh mapping

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References(9)

References

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