Volume 28 Issue 1
Jan.  2013
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CHEN Shu-xian, ZHANG Jing-zhou, TAN Xiao-ming, ZUO Yu-yu. Flow characteristics inside counter-rotating disk cavity[J]. Journal of Aerospace Power, 2013, 28(1): 136-142.
Citation: CHEN Shu-xian, ZHANG Jing-zhou, TAN Xiao-ming, ZUO Yu-yu. Flow characteristics inside counter-rotating disk cavity[J]. Journal of Aerospace Power, 2013, 28(1): 136-142.

Flow characteristics inside counter-rotating disk cavity

  • Received Date: 2012-01-12
  • Publish Date: 2013-01-28
  • The flow inside a counter-rotating disk cavity was studied numerically,and the validity of numerical model and methodology was evaluated by comparing the results with the experimental data in the literature.The results show that the flow structure in the cavity between counter-rotating disks is complex and the disk angular velocity ratio has an important effect on it.The effects of rotation Reynolds number and disk angular velocity ratio on the pressure in the cavity and frictional moment number on the disk were also studied.The results indicate that the pressure decreases and the frictional moment increases with the increase of rotational Reynolds number,and the pressure is the largest when the frictional moment is also the largest with the counter-rotating disks at the same speeds compared with others at different speeds.

     

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