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Volume 46 Issue 5
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YANG Xin, CHEN Hongyong, LI Qisheng, GONG Zhibin, SONG Qiong, LI Xinyao, YIN Yihui. Simulations and tests on characteristics of flow field of high-speed centrifuge chamber with inlet and outlet[J]. Chinese Journal of Geotechnical Engineering, 2024, 46(5): 1112-1118. DOI: 10.11779/CJGE20230116
Citation: YANG Xin, CHEN Hongyong, LI Qisheng, GONG Zhibin, SONG Qiong, LI Xinyao, YIN Yihui. Simulations and tests on characteristics of flow field of high-speed centrifuge chamber with inlet and outlet[J]. Chinese Journal of Geotechnical Engineering, 2024, 46(5): 1112-1118. DOI: 10.11779/CJGE20230116
shu

Simulations and tests on characteristics of flow field of high-speed centrifuge chamber with inlet and outlet

  • 1.

    Institute of Systems Engineering, Chinese Academy of Engineering Physics, Mianyang 621999, China

  • 2.

    Sichuan Key Laboratory of Impact and Vibration of Engineering Materials and Structures, Mianyang 621999, China

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  • Received Date: February 12, 2023
  • Available Online: July 31, 2023
    Graphical Abstract
    • Abstract
  • To investigate the characteristics of flow field in centrifuge chamber with opening and the effect of opening on wind resistance power, firstly, based on the computational fluid dynamics method, the model for the flow field of a centrifuge chamber is established, and the opening state of the chamber is simulated. Secondly, the tests on the flow field are carried out on a high-speed centrifuge, and the spatial distribution of the pressure and wind speed in the centrifuge room, as well as the change rules with the centrifuge speed, is obtained. The difference of the wind resistance power between the disc rotor and the rotor arm is compared. The results show that the sliding grid technology can be used to calculate the rotating flow field in the centrifuge chamber and the inclined vent is more conducive to the ventilation and heat transfer of the chamber, and reduces the wind resistance power of the centrifuge operation. The rectification of pits on rotating parts can effectively reduce the wind resistance power. The differential pressure resistance of the disc rotor is far less than that of the rotary arm rotor. The heat transfer efficiency of the machine room can be improved by reasonably designing the vent, and the research can provide reference for the design of the machine room and temperature control of the high-speed centrifuge.
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    • References (11)
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