This paper establishes a computational model for a two-spool mixed turbofan engine. By using the direct simulation method, its transient performance is solved. A one-dimensional model of the air system network is established and solved, which result has been used to build a characteristic map, coupling to the engine’s model. The effects of the coupling on the bleed and performance parameters are calculated in two conditions: the former one accelerates from idle state to maximum-continuous state, the latter one decelerates from maximum-continuous state to idle state. The result shows that, introducing the air system into engine’s transient performance model can reduce cooling flow by approximately 1% at the end of acceleration and approximately 5% at the end of deceleration. Coupling the characteristic map to the engine’s model may lead to extra 3% acceleration time and 1% loss on the surge margin of engine’s compressor. For the deceleration case, the coupling can lead to extra 2% deceleration time and 5% loss on the compressor’s surge margin


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    Title :

    Transient Performance Calculation Model for Turbofan Engines Coupled with Air System


    Contributors:
    Wang, Han-Yang (author) / Jia, Lin-Yuan (author) / Fang, Rui-Yuan (author) / Liu, Zhen (author) / Zhao, Zhen-Nan (author) / Kong, Fan-Qi (author)


    Publication date :

    2023-07-18


    Size :

    711873 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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    Transient Performance of Turbofan Engines with Respect to Unsteady Compressor Flow Near the Stability Limit

    Herpel, T. / Fottner, L. / International Society for Air Breathing Engines; Australian Committee | British Library Conference Proceedings | 1995