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| Comparative Study on Estimation Methods of Wind Resistance of Geotechnical Centrifuges |
| Received:September 24, 2017 Revised:March 15, 2018 |
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| DOI：10.7643/ issn.1672-9242.2018.03.013 |
| KeyWord:geotechnical centrifuge wind resistance flow field air following flow ratio |
| Author | Institution |
| HAO Yu |
Institute of Engineering Physics, China Academy of Engineering Physics, Mianyang , China |
| YIN Yi-hui |
Institute of Engineering Physics, China Academy of Engineering Physics, Mianyang , China |
| WAN Qiang |
Institute of Engineering Physics, China Academy of Engineering Physics, Mianyang , China |
| LI Qi-sheng |
Institute of Engineering Physics, China Academy of Engineering Physics, Mianyang , China |
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| Abstract: |
| Objective To evaluate effects and pros-and-cons of different estimation methods for wind resistance of geotechnical centrifuges, and provide suggestions on engineering application and future research. Methods Geotechnical centrifuge was mainly taken as example to introduce several typical calculation methods and systematically analyze commonness and difference among the methods. The effects of different methods were compared by a classical example combined with design experience on centrifuges. Results French Methods, US Method, CAEP Method and CFD Simulation had a successively increasing accuracy with a successively increasing complexity. Meanwhile the later two did not depend on experimenting data in determination of parameters. Conclusion For geotechnical centrifuges working at low-to medium speeds, the CAEP method has an advantage over others in engineering practice. But as the development of geotechnical centrifuges to the direction of large scales and high speeds, the validity of traditional analytical methods is still not examined. High fidelity methods based on CFD seems a good option. |
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