Volume 28 Issue 9
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TIAN Jin-hu, QIAO Wei-yang, PENG Sheng-hong. Numerical calculation of dynamic performance of low-bypass ratio turbofan engine[J]. Journal of Aerospace Power, 2013, 28(9): 1988-1996.
Citation: TIAN Jin-hu, QIAO Wei-yang, PENG Sheng-hong. Numerical calculation of dynamic performance of low-bypass ratio turbofan engine[J]. Journal of Aerospace Power, 2013, 28(9): 1988-1996.
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Numerical calculation of dynamic performance of low-bypass ratio turbofan engine

  • 1.

    School of Power and Energy, Northwestern Polytechnical University, Xi'an 71007

  • 2.

    Aviation Key Laboratory of Science and Technology on Aero-engine Altitude Simulating, China Gas Turbine Establishment, Aviation Industry Corporation of China, Jiangyou Sichuan 621703, China

  • Received Date: 2012-09-18
  • Publish Date: 2013-09-28
    Abstract
  • The dynamic mathematical model and numerical simulation methods of turbofan engine were investigated.The modified engine dynamic performance numerical simulation program could simulate the engine dynamic conditions,such as changes of the inlet parameters,engine maximum rating after burning,engine acceleration and deceleration;then,dynamic performance of low-bypass turbofan engine was analyzed.The numerical simulation results show that engine thrust drops gradually within some accretion range while the inlet parameters change quickly;on the contrary,there isn't thrust surge while the inlet parameters change slowly.History of maximum specific fuel consumption is different while change speed of fuel flux accretion and diminution is unlike.Similarly,the maximum engine thrust and specific fuel consumption may vary with temperature rise.

     

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