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| CFD Simulation Method Based on ZJU400 Geotechnical Centrifuge |
| Received:April 05, 2020 Revised:May 13, 2020 |
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| DOI：10.7643/issn.1672-9242.2020.11.013 |
| KeyWord:geotechnical centrifuge CFD simulation wind resistance power K-omega SST turbulence model flow field temperature field |
| Author | Institution |
| GUO Yi-nan |
Architectural Design & Research Institute of Zhejiang University Co.Ltd., Hangzhou , China;Center for Balanced Architecture, Zhejiang University Hangzhou , China |
| YANG Yi |
Architectural Design & Research Institute of Zhejiang University Co.Ltd., Hangzhou , China;Center for Balanced Architecture, Zhejiang University Hangzhou , China |
| WANG Ya-lin |
Architectural Design & Research Institute of Zhejiang University Co.Ltd., Hangzhou , China;Center for Balanced Architecture, Zhejiang University Hangzhou , China |
| YU Jun-xiang |
Architectural Design & Research Institute of Zhejiang University Co.Ltd., Hangzhou , China;Center for Balanced Architecture, Zhejiang University Hangzhou , China |
| DING De |
Architectural Design & Research Institute of Zhejiang University Co.Ltd., Hangzhou , China;Center for Balanced Architecture, Zhejiang University Hangzhou , China |
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| Abstract: |
| 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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