Volume 28 Issue 10
Oct.  2013
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WANG Ming, LU Yuan-li, JI Hong-hu. Numerical investigation on the influences of impingement holes on heat transfer of leading edge in lamilloy[J]. Journal of Aerospace Power, 2013, 28(10): 2240-2247.
Citation: WANG Ming, LU Yuan-li, JI Hong-hu. Numerical investigation on the influences of impingement holes on heat transfer of leading edge in lamilloy[J]. Journal of Aerospace Power, 2013, 28(10): 2240-2247.

Numerical investigation on the influences of impingement holes on heat transfer of leading edge in lamilloy

  • Received Date: 2013-07-07
  • Publish Date: 2013-10-28
  • According to the typical guide vane shape and the boundary conditions, numerical investigation was carried out to study the flow and heat transfer characteristics on simplified vane leading edge in lamilloy. Two arrangements of impingement holes, film holes and pin-fins, and two axis modes of impingement holes were analyzed, and re-normalization group(RNG)k-ε turbulent model was used. The results show that with the same arrangement of film holes and pin-fins, the models with different impingement holes have less than 1% of cooling flow rate varies. Besides, the model with more impingement holes and smaller diameter of impingement holes can achieve higher heat transfer coefficient and cooling effectiveness, by about 2%. The angle of impingement holes axis has little influence on heat transfer of leading edge in the same arrangement impingement holes.

     

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