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Volume 42 Issue 4
Apr.  2016
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Journal of Beijing University of Aeronautics and Astronautics  > 2016  >  42(4): 654-661.
DING Shuiting, CHE Weiwei, LIU Chuankaiet al. Dynamic pressure characteristic analysis for double-cavity model of air system[J]. Journal of Beijing University of Aeronautics and Astronautics, 2016, 42(4): 654-661. doi: 10.13700/j.bh.1001-5965.2015.0256(in Chinese)
Citation: DING Shuiting, CHE Weiwei, LIU Chuankaiet al. Dynamic pressure characteristic analysis for double-cavity model of air system[J]. Journal of Beijing University of Aeronautics and Astronautics, 2016, 42(4): 654-661. doi: 10.13700/j.bh.1001-5965.2015.0256(in Chinese)
shu

Dynamic pressure characteristic analysis for double-cavity model of air system

doi: 10.13700/j.bh.1001-5965.2015.0256
  • 1.

    Beijing Key Laboratory on Safety of Integrated Aircraft and Propulsion System, Beijing 100083, China

  • 2. Co-Innovation Center for Advanced Aero-Engine, Beijing 100083, China

  • 3. School of Jet Propulsion, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

  • 4. School of Transportation Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

Funds:  Innovation Plan of Aero Engine Complex System Safety by the Ministry of Education Chang Jiang Scholars of China (IRT0905)
  • Received Date: 24 Apr 2015
  • Rev Recd Date: 06 Sep 2015
  • Publish Date: 20 Apr 2016
    Abstract
  • When the engine slam accelerates or suddenly fails, the pressure wave formed by cavity effect and pipe fluid inertia in a short time will have negative impact on some components of air system. On the basis of the simulation program of the modular transient air system, the pressure variation of cavity and different parts of pipe in the double-cavity model is analyzed. The influence law analysis of the size of the key components for pressure wave is mainly considered. Results show that the pressure wave produced in the transient state is closely related to the geometric structure size of the air system. The analysis method of this model can be used as a basis for fast transient research of air system of the integrated engine.

     

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