Volume 26 Issue 8
Aug.  2011
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ZHANG Bo, LI Ji-bao, JI Hong-hu, SHANG Shou-tang, CHENG Ming, WANG Yan-li. Numerical and experimental investigation on effect of distance between impingement and effusion plates on heat transfer characteristics of impingement-effusion composite cooling[J]. Journal of Aerospace Power, 2011, 26(8): 1713-1718.
Citation: ZHANG Bo, LI Ji-bao, JI Hong-hu, SHANG Shou-tang, CHENG Ming, WANG Yan-li. Numerical and experimental investigation on effect of distance between impingement and effusion plates on heat transfer characteristics of impingement-effusion composite cooling[J]. Journal of Aerospace Power, 2011, 26(8): 1713-1718.

Numerical and experimental investigation on effect of distance between impingement and effusion plates on heat transfer characteristics of impingement-effusion composite cooling

  • Received Date: 2010-08-04
  • Rev Recd Date: 2011-02-17
  • Publish Date: 2011-08-28
  • The influence of distance between impingement and effusion plates on heat transfer characteristics of impingement-effusion double wall was investigated numerically, and the validity was experimentally verified. Results show that, with the increase of gap distance, heat transfer characteristics increase firstly, and then decrease. The change of gap distance caused different developments of impinging jet and pumping effects, and also led to different heat transfer effects. It shows that fluid particles move in translational mode in most region, but in rotating mode near effusion hole and impinging hole. The stronger fluid particle rotating causes better heat transfer effect.

     

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