Assessment of Computational Technicalities for 2D/1D Coupling Method and Its Comparison with 3D MOC
The 2D/1D coupling method is recognized as one of the preferred high-fidelity calculation methods for reactors featured with well homogeneity in the axial direction. However, the choices of the technicalities, such as transverse leakage, axial solver, and transverse leakage splitting method, will le...
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2024-01-01
|
| Series: | Science and Technology of Nuclear Installations |
| Online Access: | http://dx.doi.org/10.1155/2024/2198653 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832565830409256960 |
|---|---|
| author | Boran Kong Han Zhang Qinrong Dou Zhaoyuan Liu Chen Hao Jiong Guo Fu Li |
| author_facet | Boran Kong Han Zhang Qinrong Dou Zhaoyuan Liu Chen Hao Jiong Guo Fu Li |
| author_sort | Boran Kong |
| collection | DOAJ |
| description | The 2D/1D coupling method is recognized as one of the preferred high-fidelity calculation methods for reactors featured with well homogeneity in the axial direction. However, the choices of the technicalities, such as transverse leakage, axial solver, and transverse leakage splitting method, will lead to different calculational performance. This paper outlines the theory of the 2D/1D coupling method and describes the detailed implementations of the key technicalities. Based on numerical tests, the choices of the related calculational parameters are analyzed, such as the order of the quadrature set, ray spacing, and the axial mesh size. Then, the computational performance of six typical 2D/1D technicalities is compared and assessed. A comparison between 2D/1D coupling method and direct 3D MOC calculation is also made. For the transverse leakage, the Fourier expansion technique could significantly reduce the memory burden and computational cost, but with the similar accuracy as the anisotropic leakage term. It is recommended to use the axial DGFEM SN solver, which has better consistency and leads to higher computational efficiency. Additionally, the results also show that the 2D/1D coupling method can appropriately increase the axial mesh size, which only has slight effect on the accuracy. For nuclear reactors featured with nonstrong heterogeneity in axial direction, the 2D/1D coupling method has significant advantages than the direct 3D MOC calculation. |
| format | Article |
| id | doaj-art-015dea1f5061428286a60fe27d0d7a8c |
| institution | Kabale University |
| issn | 1687-6083 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Science and Technology of Nuclear Installations |
| spelling | doaj-art-015dea1f5061428286a60fe27d0d7a8c2025-02-03T01:06:28ZengWileyScience and Technology of Nuclear Installations1687-60832024-01-01202410.1155/2024/2198653Assessment of Computational Technicalities for 2D/1D Coupling Method and Its Comparison with 3D MOCBoran Kong0Han Zhang1Qinrong Dou2Zhaoyuan Liu3Chen Hao4Jiong Guo5Fu Li6Institute of Applied Physics and Computational MathematicsInstitute of Nuclear and New Energy Technology (INET)Institute of Nuclear and New Energy Technology (INET)Department of Engineering PhysicsFundamental Science on Nuclear Safety and Simulation Technology LaboratoryInstitute of Nuclear and New Energy Technology (INET)Institute of Nuclear and New Energy Technology (INET)The 2D/1D coupling method is recognized as one of the preferred high-fidelity calculation methods for reactors featured with well homogeneity in the axial direction. However, the choices of the technicalities, such as transverse leakage, axial solver, and transverse leakage splitting method, will lead to different calculational performance. This paper outlines the theory of the 2D/1D coupling method and describes the detailed implementations of the key technicalities. Based on numerical tests, the choices of the related calculational parameters are analyzed, such as the order of the quadrature set, ray spacing, and the axial mesh size. Then, the computational performance of six typical 2D/1D technicalities is compared and assessed. A comparison between 2D/1D coupling method and direct 3D MOC calculation is also made. For the transverse leakage, the Fourier expansion technique could significantly reduce the memory burden and computational cost, but with the similar accuracy as the anisotropic leakage term. It is recommended to use the axial DGFEM SN solver, which has better consistency and leads to higher computational efficiency. Additionally, the results also show that the 2D/1D coupling method can appropriately increase the axial mesh size, which only has slight effect on the accuracy. For nuclear reactors featured with nonstrong heterogeneity in axial direction, the 2D/1D coupling method has significant advantages than the direct 3D MOC calculation.http://dx.doi.org/10.1155/2024/2198653 |
| spellingShingle | Boran Kong Han Zhang Qinrong Dou Zhaoyuan Liu Chen Hao Jiong Guo Fu Li Assessment of Computational Technicalities for 2D/1D Coupling Method and Its Comparison with 3D MOC Science and Technology of Nuclear Installations |
| title | Assessment of Computational Technicalities for 2D/1D Coupling Method and Its Comparison with 3D MOC |
| title_full | Assessment of Computational Technicalities for 2D/1D Coupling Method and Its Comparison with 3D MOC |
| title_fullStr | Assessment of Computational Technicalities for 2D/1D Coupling Method and Its Comparison with 3D MOC |
| title_full_unstemmed | Assessment of Computational Technicalities for 2D/1D Coupling Method and Its Comparison with 3D MOC |
| title_short | Assessment of Computational Technicalities for 2D/1D Coupling Method and Its Comparison with 3D MOC |
| title_sort | assessment of computational technicalities for 2d 1d coupling method and its comparison with 3d moc |
| url | http://dx.doi.org/10.1155/2024/2198653 |
| work_keys_str_mv | AT borankong assessmentofcomputationaltechnicalitiesfor2d1dcouplingmethodanditscomparisonwith3dmoc AT hanzhang assessmentofcomputationaltechnicalitiesfor2d1dcouplingmethodanditscomparisonwith3dmoc AT qinrongdou assessmentofcomputationaltechnicalitiesfor2d1dcouplingmethodanditscomparisonwith3dmoc AT zhaoyuanliu assessmentofcomputationaltechnicalitiesfor2d1dcouplingmethodanditscomparisonwith3dmoc AT chenhao assessmentofcomputationaltechnicalitiesfor2d1dcouplingmethodanditscomparisonwith3dmoc AT jiongguo assessmentofcomputationaltechnicalitiesfor2d1dcouplingmethodanditscomparisonwith3dmoc AT fuli assessmentofcomputationaltechnicalitiesfor2d1dcouplingmethodanditscomparisonwith3dmoc |