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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    Titel :

    Transient Performance Calculation Model for Turbofan Engines Coupled with Air System


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


    Erscheinungsdatum :

    2023-07-18


    Format / Umfang :

    711873 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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