| 郭轶楠,杨毅,王亚林,余俊祥,丁德.基于ZJU400土工离心机的CFD模拟方法[J].装备环境工程,2020,17(11):85-89. GUO Yi-nan,YANG Yi,WANG Ya-lin,YU Jun-xiang,DING De.CFD Simulation Method Based on ZJU400 Geotechnical Centrifuge[J].Equipment Environmental Engineering,2020,17(11):85-89. |
| 基于ZJU400土工离心机的CFD模拟方法 |
| CFD Simulation Method Based on ZJU400 Geotechnical Centrifuge |
| 投稿时间：2020-04-05 修订日期：2020-05-13 |
| DOI：10.7643/issn.1672-9242.2020.11.013 |
| 中文关键词: 土工离心机 CFD数值模拟 风阻功率 K-omega SST湍流模型 流场 温度场 |
| 英文关键词:geotechnical centrifuge CFD simulation wind resistance power K-omega SST turbulence model flow field temperature field |
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| Author | Institution |
| GUO Yi-nan | Architectural Design & Research Institute of Zhejiang University Co.Ltd., Hangzhou 310028, China;Center for Balanced Architecture, Zhejiang University Hangzhou 310028, China |
| YANG Yi | Architectural Design & Research Institute of Zhejiang University Co.Ltd., Hangzhou 310028, China;Center for Balanced Architecture, Zhejiang University Hangzhou 310028, China |
| WANG Ya-lin | Architectural Design & Research Institute of Zhejiang University Co.Ltd., Hangzhou 310028, China;Center for Balanced Architecture, Zhejiang University Hangzhou 310028, China |
| YU Jun-xiang | Architectural Design & Research Institute of Zhejiang University Co.Ltd., Hangzhou 310028, China;Center for Balanced Architecture, Zhejiang University Hangzhou 310028, China |
| DING De | Architectural Design & Research Institute of Zhejiang University Co.Ltd., Hangzhou 310028, China;Center for Balanced Architecture, Zhejiang University Hangzhou 310028, China |
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| 中文摘要: |
| 目的 给出可靠的CFD模拟方法，用于土工离心机风阻功率估算，得到流场及温度场模拟结果。方法 针对ZJU400中高速大型土工离心机，利用结构化网格划分使转臂及内壁面处的y+值＜30，使其满足湍流模型边界层厚度要求。利用k-omega SST湍流模型和MRF多参考系方法对ZJU400土工离心机进行数值模拟，对模拟所得风阻功率、流场和温度场进行对比验证。结果 模拟所得风阻功率与ZJU400实测数据偏差<10%，模拟所得流场与文献[8]中的结果吻合，温度场与实测数据吻合。结论 针对ZJU400中高速大型土工离心机的CFD模拟方法取得了精度较高的模拟结果，通过仿真模拟弥补了大型土工离心机实验数据缺乏问题，减少了对实验数据的依赖，为制造设计和研究大型土工离心机提供了CFD模拟方法。 |
| 英文摘要: |
| The work aims to provide a reliable CFD simulation method for estimating the wind resistance power of geotechnical centrifuge and obtaining the simulation results of flow field and temperature field.Aiming at ZJU400 medium-to-high speed large geotechnical centrifuge, structured grid division was used to ensure the y+ value at the tumbler and the inner wall surface less than 30, thus meeting the boundary layer thickness requirement. The k-omega SST turbulence model and multi-reference frames (MRF) were used to simulate the ZJU400 geotechnical centrifuge and comparatively verify the wind resistance power, flow field and temperature field obtained from the simulation. The deviation between the simulated wind resistance power and the measured data of ZJU400 was less than 10%, the simulated flow field was consistent with the results in the literature [8], and the temperature field was consistent with the measured data. CFD simulation method for ZJU400 medium-to-high speed large geotechnical centrifuge achieves high precision simulation results, which makes up for the lack of large geotechnical centrifuge experimental data through simulation and reduces the dependence on experimental data. The CFD simulation method is provided for manufacturing, designing and studying the large geotechnical centrifuge. |
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