Turbulent-Prandtl-number models for liquid lead-bismuth in triangular rod bundles
BackgroundIn order to accurately predict the heat transfer characteristics in the sub-channel of fuel assembly for the low Prandtl number fluid, it is necessary to select a suitable turbulent-Prandtl-number model.PurposeThis study aims at the applicability of turbulent-Prandtl-number models for liqu...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
Science Press
2022-03-01
|
| Series: | He jishu |
| Subjects: | |
| Online Access: | http://www.hjs.sinap.ac.cn/thesisDetails#10.11889/j.0253-3219.2022.hjs.45.030604&lang=zh |
| _version_ | 1811169647206072320 |
|---|---|
| author | LIU Shuyong YU Dali MEI Huaping WANG Zhen ZHANG Shichao LI Taosheng |
| author_facet | LIU Shuyong YU Dali MEI Huaping WANG Zhen ZHANG Shichao LI Taosheng |
| author_sort | LIU Shuyong |
| collection | DOAJ |
| description | BackgroundIn order to accurately predict the heat transfer characteristics in the sub-channel of fuel assembly for the low Prandtl number fluid, it is necessary to select a suitable turbulent-Prandtl-number model.PurposeThis study aims at the applicability of turbulent-Prandtl-number models for liquid lead-bismuth turbulence in triangular fuel rod bundles.MethodsBased on the triangular rod bundle heat transfer correlation, the turbulent models of Shear Stress Transfer (SST) k-ω was adopted to analyze the different rod bundle structures for five different kinds of turbulent-Prandtl-number models. The analysis results were compared with the recommended heat transfer correlation, which had been verified by experiment in the sub-channels for liquid lead-bismuth. The applicability of various turbulent-Prandtl-number models under different rod diameters and pitch diameter ratios was analyzed in details.ResultsThe results show that the global turbulent-Prandtl-number model is not only related to the Reynolds number Re and Peclet number Pe, but also related to the pitch-to-diameter ratio (P/D). In the entire region of (1.3≤P/D≤1.7), simulation results of turbulent-Prandtl-number model proposed by Kays are in good agreement with the values calculated by Mikityuk equation. All sorts of turbulent-Prandtl-number models have the best P/D scope of application.ConclusionsThe related turbulent-Prandtl-number models can be used to predict the heat transfer characteristics of liquid lead-bismuth in the triangular rod bundles under different pitch diameter ratios. |
| first_indexed | 2024-04-10T16:45:40Z |
| format | Article |
| id | doaj.art-9fbe71d1e84d4e3a9d0882ba663457b9 |
| institution | Directory Open Access Journal |
| issn | 0253-3219 |
| language | zho |
| last_indexed | 2024-04-10T16:45:40Z |
| publishDate | 2022-03-01 |
| publisher | Science Press |
| record_format | Article |
| series | He jishu |
| spelling | doaj.art-9fbe71d1e84d4e3a9d0882ba663457b92023-02-08T00:47:19ZzhoScience PressHe jishu0253-32192022-03-0145303060403060410.11889/j.0253-3219.2022.hjs.45.0306040253-3219（2022）03-0096-09Turbulent-Prandtl-number models for liquid lead-bismuth in triangular rod bundlesLIU Shuyong0YU Dali1MEI Huaping2WANG Zhen3ZHANG Shichao4LI Taosheng5Institute of Nuclear Energy Safety Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, ChinaInstitute of Nuclear Energy Safety Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, ChinaInstitute of Nuclear Energy Safety Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, ChinaInstitute of Nuclear Energy Safety Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, ChinaInstitute of Nuclear Energy Safety Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, ChinaInstitute of Nuclear Energy Safety Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, ChinaBackgroundIn order to accurately predict the heat transfer characteristics in the sub-channel of fuel assembly for the low Prandtl number fluid, it is necessary to select a suitable turbulent-Prandtl-number model.PurposeThis study aims at the applicability of turbulent-Prandtl-number models for liquid lead-bismuth turbulence in triangular fuel rod bundles.MethodsBased on the triangular rod bundle heat transfer correlation, the turbulent models of Shear Stress Transfer (SST) k-ω was adopted to analyze the different rod bundle structures for five different kinds of turbulent-Prandtl-number models. The analysis results were compared with the recommended heat transfer correlation, which had been verified by experiment in the sub-channels for liquid lead-bismuth. The applicability of various turbulent-Prandtl-number models under different rod diameters and pitch diameter ratios was analyzed in details.ResultsThe results show that the global turbulent-Prandtl-number model is not only related to the Reynolds number Re and Peclet number Pe, but also related to the pitch-to-diameter ratio (P/D). In the entire region of (1.3≤P/D≤1.7), simulation results of turbulent-Prandtl-number model proposed by Kays are in good agreement with the values calculated by Mikityuk equation. All sorts of turbulent-Prandtl-number models have the best P/D scope of application.ConclusionsThe related turbulent-Prandtl-number models can be used to predict the heat transfer characteristics of liquid lead-bismuth in the triangular rod bundles under different pitch diameter ratios.http://www.hjs.sinap.ac.cn/thesisDetails#10.11889/j.0253-3219.2022.hjs.45.030604&lang=zhlead-cooled fast reactortriangular rod bundleslow prandtl number fluidturbulent-prandtl-number modelcfd numerical simulation |
| spellingShingle | LIU Shuyong YU Dali MEI Huaping WANG Zhen ZHANG Shichao LI Taosheng Turbulent-Prandtl-number models for liquid lead-bismuth in triangular rod bundles He jishu lead-cooled fast reactor triangular rod bundles low prandtl number fluid turbulent-prandtl-number model cfd numerical simulation |
| title | Turbulent-Prandtl-number models for liquid lead-bismuth in triangular rod bundles |
| title_full | Turbulent-Prandtl-number models for liquid lead-bismuth in triangular rod bundles |
| title_fullStr | Turbulent-Prandtl-number models for liquid lead-bismuth in triangular rod bundles |
| title_full_unstemmed | Turbulent-Prandtl-number models for liquid lead-bismuth in triangular rod bundles |
| title_short | Turbulent-Prandtl-number models for liquid lead-bismuth in triangular rod bundles |
| title_sort | turbulent prandtl number models for liquid lead bismuth in triangular rod bundles |
| topic | lead-cooled fast reactor triangular rod bundles low prandtl number fluid turbulent-prandtl-number model cfd numerical simulation |
| url | http://www.hjs.sinap.ac.cn/thesisDetails#10.11889/j.0253-3219.2022.hjs.45.030604&lang=zh |
| work_keys_str_mv | AT liushuyong turbulentprandtlnumbermodelsforliquidleadbismuthintriangularrodbundles AT yudali turbulentprandtlnumbermodelsforliquidleadbismuthintriangularrodbundles AT meihuaping turbulentprandtlnumbermodelsforliquidleadbismuthintriangularrodbundles AT wangzhen turbulentprandtlnumbermodelsforliquidleadbismuthintriangularrodbundles AT zhangshichao turbulentprandtlnumbermodelsforliquidleadbismuthintriangularrodbundles AT litaosheng turbulentprandtlnumbermodelsforliquidleadbismuthintriangularrodbundles |