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Wang Jia, Wu Di, Duan Li, Kang Qi. GROUND EXPERIMENTS ON THE INSTABILITY OF THERMOCAPILLARY CONVECTION IN LARGE SCALE LIQUID BRIDGE[J]. Chinese Journal of Theoretical and Applied Mechanics, 2015, 47(4): 580-586. DOI: 10.6052/0459-1879-14-309
Citation: Wang Jia, Wu Di, Duan Li, Kang Qi. GROUND EXPERIMENTS ON THE INSTABILITY OF THERMOCAPILLARY CONVECTION IN LARGE SCALE LIQUID BRIDGE[J]. Chinese Journal of Theoretical and Applied Mechanics, 2015, 47(4): 580-586. DOI: 10.6052/0459-1879-14-309
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GROUND EXPERIMENTS ON THE INSTABILITY OF THERMOCAPILLARY CONVECTION IN LARGE SCALE LIQUID BRIDGE

  • Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China

Funds: The project was supported by the National Natural Science Foundation of China (11372328, 11032011), Human Spaceflight and SJ-10 Satellite.
  • Received Date: November 08, 2014
  • Revised Date: January 04, 2015
    Graphical Abstract
    • Abstract
  • In this paper, PIV and thermal infrared camera are used to observe the flow field structure and temperature distribution respectively. In large Prandtl number condition, the critical temperature difference or the corresponding Marangoni number will tend to decrease with the increase of volume ratio and the ratio of height to diameter, besides, the fluid field can flow from stable state via unstable state to oscillation and will change along with the change of high aspect ratio. Traveling wave will appear when the Marangoni number exceeds the critical value, and chaos will follow with higher Marangoni number.
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