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Citation: Luo Xiang, Xu Guoqiang, Tao Zhi, et al. Flow and heat transfer in rotor-stator system with pre-swirl angle of 30°[J]. Journal of Beijing University of Aeronautics and Astronautics, 2007, 33(03): 290-293. (in Chinese)

Flow and heat transfer in rotor-stator system with pre-swirl angle of 30°

  • Received Date: 26 Apr 2006
  • Publish Date: 31 Mar 2007
  • An experimental study of the flow and heat transfer characteristics in a pre-sw irl rotor-stator system was described. Pre-swirl cooling air thr ough nozzles with angle of 30° in the stator flows radially outwards and leav es system from the clearance between rotor and stator. The distributions of the pressure on the stator surface, temperature, local and averaged Nusselt number o n the rotating disk surface were obtained from the tests. The experiments reveal that the pressure on the stator surface increase as the radius and also increas e as rotating speed. The local Nu number will keep invariable when r<0.7R(R is effective radius of rotating disk) in the rotating disk surface, but it will inc rease rapidly as radius when r>0.7R. The cooling flow rate have more effects on average Nu number than rotating speed in this pre-swirl angle.

     

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