Volume 26 Issue 1
Jan.  2011
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ZHANG Chuan-jie, SUN Ji-ning, TAN Ping. Numerical investigation on heat transfer mechanism of impingement jet with cross-flow[J]. Journal of Aerospace Power, 2011, 26(1): 65-71.
Citation: ZHANG Chuan-jie, SUN Ji-ning, TAN Ping. Numerical investigation on heat transfer mechanism of impingement jet with cross-flow[J]. Journal of Aerospace Power, 2011, 26(1): 65-71.
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Numerical investigation on heat transfer mechanism of impingement jet with cross-flow

  • National Key Laboratory of Science and Technology on Aero-Engines, School of Jet Propulsion,Beijing University of Aeronautics and Astronautics, Beijing 100191,China

  • Received Date: 2009-11-27
  • Rev Recd Date: 2010-04-21
  • Publish Date: 2011-01-28
    Abstract
  • Numeration analysis was made to simulate the influence induced by upstream jet on downstream jets in impingement chamber.The results shows that,(1) As the cross-flow increases,the heat transfer efficiency on the impinged surface changes in a very complicated way.(2) Cross-flow influences the heat transfer of the impinged surface mainly in two aspects:as the cross-flow Reynolds number increases,the strength of stretched vortex pair downstream of the jet firstly increases and then decreases,resulting in the same influence on the heat transfer of the target surface;the deviation of the impinging jet induced by cross-flow makes the high heat transfer zone move backward. (3) As cross-flow increases,the heat transfer efficiency induced by impingement and cross-flow changes,making the heat transfer on the target surface more complicated.

     

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    • References(12)
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