Volume 32 Issue 03
Mar.  2006
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Ding Shuiting, Liu Liyan, Li Liet al. Different structure diaphragm plates in complex passages of turbine blade trailing edge[J]. Journal of Beijing University of Aeronautics and Astronautics, 2006, 32(03): 276-279. (in Chinese)
Citation: Ding Shuiting, Liu Liyan, Li Liet al. Different structure diaphragm plates in complex passages of turbine blade trailing edge[J]. Journal of Beijing University of Aeronautics and Astronautics, 2006, 32(03): 276-279. (in Chinese)

Different structure diaphragm plates in complex passages of turbine blade trailing edge

  • Received Date: 11 Jun 2005
  • Publish Date: 31 Mar 2006
  • The experiment mainly conducted the effect of three different structure diaphragm plates in the complex passages on heat transfer and pressure drop characteristics of turbine blade trailing edge. A thermochromic liquid crystal method was used to measure the detailed heat transfer coefficients on the end wall surfaces. Comparison of end wall heat transfer and pressure drop characteristics was made among three kinds of diaphragm plates: rectangular diaphragm plates, 90° and 120°waved diaphragm plates in the complex passages of turbine blade trailing edge. It is found that two waved diaphragm plates produces higher heat transfer with relatively less press drop rather than the rectangular diaphragm plates, and the 90° waved diaphragm plates has higher heat transfer than the 120° waved diaphragm plates in the first passage. In the second passage the two conditions almost have the same effect, while the 90° diaphragm plates cost a higher pressure drop.

     

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