Unsteady Simulation of a Full-Scale CANDU-6 Moderator with OpenFOAM
Three-dimensional moderator flow in the calandria tank of CANDU-6 pressurized heavy water reactor (PHWR) is computed with Open Field Operation and Manipulation (OpenFOAM), an open-source computational fluid dynamics (CFD) code. In this study, numerical analysis is performed on the real geometry mode...
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-01-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/12/2/330 |
| _version_ | 1818008325171707904 |
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| author | Hyoung Tae Kim Se-Myong Chang Young Woo Son |
| author_facet | Hyoung Tae Kim Se-Myong Chang Young Woo Son |
| author_sort | Hyoung Tae Kim |
| collection | DOAJ |
| description | Three-dimensional moderator flow in the calandria tank of CANDU-6 pressurized heavy water reactor (PHWR) is computed with Open Field Operation and Manipulation (OpenFOAM), an open-source computational fluid dynamics (CFD) code. In this study, numerical analysis is performed on the real geometry model including 380 fuel rods in the calandria tank with the heat-source distribution to remove uncertainty of the previous analysis models simplified by the porous media approach. Realizable <i>k</i>-<i>ε</i> turbulence model is applied, and the buoyancy due to temperature variation is considered by Boussinesq approximation for the incompressible single-phase Navier-Stokes equations. The calculation results show that the flow is highly unsteady in the moderator. The computational flow visualization shows a circulation of flow driven by buoyancy and asymmetric oscillation at the pseudo-steady state. There is no region where the local temperature rises continuously due to slow circulating flow and its convection heat transfer. |
| first_indexed | 2024-04-14T05:27:41Z |
| format | Article |
| id | doaj.art-d00cc08319be457182f7a112444d1370 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-14T05:27:41Z |
| publishDate | 2019-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-d00cc08319be457182f7a112444d13702022-12-22T02:09:55ZengMDPI AGEnergies1996-10732019-01-0112233010.3390/en12020330en12020330Unsteady Simulation of a Full-Scale CANDU-6 Moderator with OpenFOAMHyoung Tae Kim0Se-Myong Chang1Young Woo Son2Thermal Hydraulic and Severe Accident Research Division, Korea Atomic Energy Research Institute, 989-111 Daedeok-daero, Yuseong-gu, Daejeon 34057, KoreaSchool of Mechanical Convergence Systems Engineering, Kunsan National University, 558 Daehak-ro, Gunsan, Jeonbuk 54150, KoreaSchool of Mechanical Convergence Systems Engineering, Kunsan National University, 558 Daehak-ro, Gunsan, Jeonbuk 54150, KoreaThree-dimensional moderator flow in the calandria tank of CANDU-6 pressurized heavy water reactor (PHWR) is computed with Open Field Operation and Manipulation (OpenFOAM), an open-source computational fluid dynamics (CFD) code. In this study, numerical analysis is performed on the real geometry model including 380 fuel rods in the calandria tank with the heat-source distribution to remove uncertainty of the previous analysis models simplified by the porous media approach. Realizable <i>k</i>-<i>ε</i> turbulence model is applied, and the buoyancy due to temperature variation is considered by Boussinesq approximation for the incompressible single-phase Navier-Stokes equations. The calculation results show that the flow is highly unsteady in the moderator. The computational flow visualization shows a circulation of flow driven by buoyancy and asymmetric oscillation at the pseudo-steady state. There is no region where the local temperature rises continuously due to slow circulating flow and its convection heat transfer.https://www.mdpi.com/1996-1073/12/2/330CANDU-6PHWRmoderatorturbulenceOpenFOAM |
| spellingShingle | Hyoung Tae Kim Se-Myong Chang Young Woo Son Unsteady Simulation of a Full-Scale CANDU-6 Moderator with OpenFOAM Energies CANDU-6 PHWR moderator turbulence OpenFOAM |
| title | Unsteady Simulation of a Full-Scale CANDU-6 Moderator with OpenFOAM |
| title_full | Unsteady Simulation of a Full-Scale CANDU-6 Moderator with OpenFOAM |
| title_fullStr | Unsteady Simulation of a Full-Scale CANDU-6 Moderator with OpenFOAM |
| title_full_unstemmed | Unsteady Simulation of a Full-Scale CANDU-6 Moderator with OpenFOAM |
| title_short | Unsteady Simulation of a Full-Scale CANDU-6 Moderator with OpenFOAM |
| title_sort | unsteady simulation of a full scale candu 6 moderator with openfoam |
| topic | CANDU-6 PHWR moderator turbulence OpenFOAM |
| url | https://www.mdpi.com/1996-1073/12/2/330 |
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