Chang Shinan, Guan Zhangjie, Wang Chao, et al. Application of Mie-scattering theory in measurement of mean droplet diameter[J]. Journal of Beijing University of Aeronautics and Astronautics, 2013, 39(9): 1163-1167,1191. (in Chinese)
Citation: Bu Xueqin, Chen Yuchen, Lin Guiping, et al. Investigation of heat transfer enhancement of short pin fins in hot air anti-icing system[J]. Journal of Beijing University of Aeronautics and Astronautics, 2013, 39(8): 1053-1057. (in Chinese)

Investigation of heat transfer enhancement of short pin fins in hot air anti-icing system

  • Received Date: 31 Aug 2012
  • Rev Recd Date: 26 Nov 2012
  • Publish Date: 30 Aug 2013
  • Hot air ice protection is one of the aircraft used anti-icing technology. In order to increase the anti-icing efficiency of the hot air anti-icing system, the use of short pin fins were proposed to enhance the heat transfer. The effect on heat transfer enhancement and flow resistance with different structure of the pin fins in double skin anti icing channel were investigated by using the computational fluid dynamics (CFD) method, mainly including the ratio of the pin height to diameter, pin fins array type and the channel height. Research results show that the addition of the pins especially staggered pin fins could induce more heat transfer enhancement but also greater flow resistance. And when the channel height was less than 1mm, the heat transfer increased not obviously, indicating that the narrow double skin anti-icing channel do not need to add pin fins to enhance heat transfer performance. The results can provide theoretical guidance to the design of the double skin channel in the hot air ice protection system.

     

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