Volume 30 Issue 8
Aug.  2015
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Article Navigation >  Journal of Aerospace Power  > 2015  >  30(8): 1826-1833
LIU Chuan-kai, LIU Hai-ming, LI Yan-ru, CHE Wei-wei, DING Shui-ting. Modularized simulation modeling of air system with fast transients[J]. Journal of Aerospace Power, 2015, 30(8): 1826-1833. doi: 10.13224/j.cnki.jasp.2015.08.005
Citation: LIU Chuan-kai, LIU Hai-ming, LI Yan-ru, CHE Wei-wei, DING Shui-ting. Modularized simulation modeling of air system with fast transients[J]. Journal of Aerospace Power, 2015, 30(8): 1826-1833. doi: 10.13224/j.cnki.jasp.2015.08.005
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Modularized simulation modeling of air system with fast transients

doi: 10.13224/j.cnki.jasp.2015.08.005

  • 1. School of Transportation Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China;

  • 2. National Key Laboratory of Science and Technology on Aero-Engine Aero-thermodynamics, School of Energy and Power Engineering, Beijing University of Aeronuatics and Astronautics, Beijing 100191, China;

  • 3. Beijing Key Laboratory on Safety of Integrated Aircraft and Propulsion System, School of Energy and Power Engineering, Beijing University of Aeronuatics and Astronautics, Beijing 100191, China

  • Received Date: 2014-02-23
  • Publish Date: 2015-08-28
    Abstract
  • A modular modeling method for air system with fast transient was established. The air system model was decomposed into four kinds of basic units interconnected by the standard data interface, which accounts for combined effects of volume packing and flow inertia during rapid transients. The numerical code was programed by utilizing object oriented technology, and its predictions were validated against published data. The results show that the simulation model accurately predict the millisecond time scales physical phenomena of air system with fast transients, such as reversal flow, transmission of pressure wave, coupled oscillations between multiple cavities, etc. Moreover, its modular charicteristic allows integration of further detailed air system units and establishment of more complex air system network. The modularized simulation method has prospect in studying the complex dynamic characteristics and mechanism of aero-engine air system.

     

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