Volume 29 Issue 12
Dec.  2014
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WU Dong, JIN Dong-hai, CAO Zhi-peng, AN Li-ping, GUI Xing-min. Influence on aerodynamic performance of a highly loaded two-stage fan with variable inlet guide vane[J]. Journal of Aerospace Power, 2014, 29(12): 2973-2979. doi: 10.13224/j.cnki.jasp.2014.12.026
Citation: WU Dong, JIN Dong-hai, CAO Zhi-peng, AN Li-ping, GUI Xing-min. Influence on aerodynamic performance of a highly loaded two-stage fan with variable inlet guide vane[J]. Journal of Aerospace Power, 2014, 29(12): 2973-2979. doi: 10.13224/j.cnki.jasp.2014.12.026

Influence on aerodynamic performance of a highly loaded two-stage fan with variable inlet guide vane

doi: 10.13224/j.cnki.jasp.2014.12.026
  • Received Date: 2013-08-17
  • Publish Date: 2014-12-28
  • In order to improve the stall margin and decrease the rotor attack angle of a highly loaded two-stage fan at off-design speed, different forms of variable inlet guide vane(VIGV) and traditional adjustable inlet guide vane were simulated, and the aerodynamic performance and internal flow field of highly loaded two-stage fan were analyzed. The numerical simulation results show that: at the 80% design speed, the highly loaded two-stage fan's adiabatic efficiency increases obviously with the increase of the VIGV's positive prewhirl, and the adiabatic efficiency increases 3.5% with prewhirl angle of 30 degrees; although traditional adjustable inlet guide vane has a better effect on the expanding stability, the loss is biggest when it needs a large prewhirl angle; the slot form, the slot position and the solidity of VIGV have a considerable influence on aerodynamic performance, with the design depending on the particular working conditions of the highly loaded two-stage fan.

     

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