International Journal of Fluid Machinery and Systems

Korean Society for Fluid machinery (한국유체기계학회)
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Numerical simulation of slit wall effect on the Taylor vortex flow with radial temperature gradient

  • Liu, Dong (School of Energy and Power Engineering Jiangsu University) ;
  • Chao, Chang-qing (School of Energy and Power Engineering Jiangsu University) ;
  • Zhu, Fang-neng (School of Energy and Power Engineering Jiangsu University) ;
  • Han, Xi-qiang (Beijing Shenwu Environment & Energy Technology Co., Ltd.) ;
  • Tang, Cheng (School of Energy and Power Engineering Jiangsu University)
  • Received : 2014.09.14
  • Accepted : 2015.08.20
  • Published : 2015.12.31
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Abstract

Numerical simulation was applied to investigate the Taylor vortex flow inside the concentric cylinders with a constant radial temperature gradient. The reliability of numerical simulation method was verified by the experimental results of PIV. The radial velocity and temperature distribution in plain and 12-slit model at different axial locations were compared, and the heat flux distributions along the inner cylinder wall at different work conditions were obtained. In the plain model, the average surface heat flux of inner cylinder increased with the inner cylinder rotation speed. In slit model, the slit wall significantly changed the distribution of flow field and temperature in the annulus gap, and the radial flow was strengthen obviously, which promoted the heat transfer process at the same working condition.

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References

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