Evaluation of several liquid–vapor phase change models for numerical simulation of subcooled flow boiling
The phase change model has recently attracted attention for use in flow-boiling numerical simulation research. Comparison and evaluation of the calculation accuracies and resource consumptions of phase change models are essential for developing an efficient and high-precision phase change model. In...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-07-01
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| Series: | Case Studies in Thermal Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X23003635 |
| _version_ | 1797808426588307456 |
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| author | Zheng Liu Zhiyi Yu Weihua Sun Ke Zhang |
| author_facet | Zheng Liu Zhiyi Yu Weihua Sun Ke Zhang |
| author_sort | Zheng Liu |
| collection | DOAJ |
| description | The phase change model has recently attracted attention for use in flow-boiling numerical simulation research. Comparison and evaluation of the calculation accuracies and resource consumptions of phase change models are essential for developing an efficient and high-precision phase change model. In this study, the Dong and Chen models, were added to the FLUENT software as two new models by introducing a unique user-defined function (UDF). The two unique models and the Lee model served as the foundation for numerical research, and the values of dependabilities and properties for flow and heat transmission predicted by these models were compared. Visual studies and flow-boiling heat transfer correlations were used to validate the results. The results reveal that the Chen model, which considers the active nucleation density site of bubbles, has a significant advantage over the other two models in terms of predicting flow characteristics. The Lee and Dong models are better suited for forecasting the changing tendency of the heat transfer coefficient, whereas the values obtained with the Chen model are closer to the reference values for the Liu–Winterton correlation. Besides, the two novel models also have higher computational costs. |
| first_indexed | 2024-03-13T06:37:19Z |
| format | Article |
| id | doaj.art-aa3035239e45478b9162ac690c7a5375 |
| institution | Directory Open Access Journal |
| issn | 2214-157X |
| language | English |
| last_indexed | 2024-03-13T06:37:19Z |
| publishDate | 2023-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Thermal Engineering |
| spelling | doaj.art-aa3035239e45478b9162ac690c7a53752023-06-09T04:27:58ZengElsevierCase Studies in Thermal Engineering2214-157X2023-07-0147103057Evaluation of several liquid–vapor phase change models for numerical simulation of subcooled flow boilingZheng Liu0Zhiyi Yu1Weihua Sun2Ke Zhang3School of Mechanical Engineering, Beijing Institute of Technology, Beijing, 100081, ChinaSchool of Mechanical Engineering, Beijing Institute of Technology, Beijing, 100081, China; State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing, 100084, China; Corresponding author. School of Mechanical Engineering, Beijing Institute of Technology, Beijing, 100081, China.School of Mechanical Engineering, Beijing Institute of Technology, Beijing, 100081, ChinaSchool of Mechanical Engineering, Beijing Institute of Technology, Beijing, 100081, ChinaThe phase change model has recently attracted attention for use in flow-boiling numerical simulation research. Comparison and evaluation of the calculation accuracies and resource consumptions of phase change models are essential for developing an efficient and high-precision phase change model. In this study, the Dong and Chen models, were added to the FLUENT software as two new models by introducing a unique user-defined function (UDF). The two unique models and the Lee model served as the foundation for numerical research, and the values of dependabilities and properties for flow and heat transmission predicted by these models were compared. Visual studies and flow-boiling heat transfer correlations were used to validate the results. The results reveal that the Chen model, which considers the active nucleation density site of bubbles, has a significant advantage over the other two models in terms of predicting flow characteristics. The Lee and Dong models are better suited for forecasting the changing tendency of the heat transfer coefficient, whereas the values obtained with the Chen model are closer to the reference values for the Liu–Winterton correlation. Besides, the two novel models also have higher computational costs.http://www.sciencedirect.com/science/article/pii/S2214157X23003635Phase change modelEvaluationFlow boilingHeat transferNumerical simulation |
| spellingShingle | Zheng Liu Zhiyi Yu Weihua Sun Ke Zhang Evaluation of several liquid–vapor phase change models for numerical simulation of subcooled flow boiling Case Studies in Thermal Engineering Phase change model Evaluation Flow boiling Heat transfer Numerical simulation |
| title | Evaluation of several liquid–vapor phase change models for numerical simulation of subcooled flow boiling |
| title_full | Evaluation of several liquid–vapor phase change models for numerical simulation of subcooled flow boiling |
| title_fullStr | Evaluation of several liquid–vapor phase change models for numerical simulation of subcooled flow boiling |
| title_full_unstemmed | Evaluation of several liquid–vapor phase change models for numerical simulation of subcooled flow boiling |
| title_short | Evaluation of several liquid–vapor phase change models for numerical simulation of subcooled flow boiling |
| title_sort | evaluation of several liquid vapor phase change models for numerical simulation of subcooled flow boiling |
| topic | Phase change model Evaluation Flow boiling Heat transfer Numerical simulation |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X23003635 |
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