Volume 29 Issue 11
Nov.  2014
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WANG Yuan, ZHANG Ping-ping, LI Qiu-hong, HUANG Xiang-hua. Research and validation of variable cycle engine modeling method[J]. Journal of Aerospace Power, 2014, 29(11): 2643-2651. doi: 10.13224/j.cnki.jasp.2014.11.014
Citation: WANG Yuan, ZHANG Ping-ping, LI Qiu-hong, HUANG Xiang-hua. Research and validation of variable cycle engine modeling method[J]. Journal of Aerospace Power, 2014, 29(11): 2643-2651. doi: 10.13224/j.cnki.jasp.2014.11.014
shu

Research and validation of variable cycle engine modeling method

doi: 10.13224/j.cnki.jasp.2014.11.014

  • 1. Jiangsu Province Key Laboratory of Aerospace Power System, College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;

  • 2. China Aviation Powerplant Research Institute, Aviation Industry Corporation of China, Zhuzhou Hunan 412000, China

  • Received Date: 2013-07-15
  • Publish Date: 2014-11-28
    Abstract
  • The key components modeling techniques of variable cycle engine(VCE) were studied. Two fans of VCE were divided into tip and hup sections during modeling process to suit the characteristic of VCE. The relationship between the valve opening, the bypass inlet total pressure, the dynamic pressure and total pressure recovery coefficient of bypass was got based on flow field analysis, and modeled by intelligent network. The co-working equations between components of VCE were set up. Then the component-level model of VCE was got. The bypass model was improved. The design point calculations were completed based on the European Space and Propulsion System Simulation Database, and simulations were carried out. The results of simulations indicate that the mathematical model exhibits the same performance as the actual engine experiment. At low Mach number, the double bypass mode achieves higher thrust and lower specific fuel consumption, and at high Mach number, the single bypass mode shows higher thrust and lower specific fuel consumption. So the modeling method of VCE proposed is feasible.

     

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