The “swing” type guide vane has been widely used to control flow capacity in variable nozzle turbines. One disadvantage of these variable nozzle turbines is the drastic drop in stage efficiency that is caused by nozzle leakage flow when the engine operates at “low-end” conditions. In the present work, a novel split sliding guide vane has been proposed to improve turbine stage performance by mitigating the nozzle leakage flow. The design idea, geometry structure, and actuating method of split sliding guide vane are described in detail. A series of steady numerical simulations were performed on both baseline and split sliding guide vane turbines to verify the effectiveness of the split sliding guide vane, at three representative nozzle openings. Simulation results indicate that split sliding guide vane can effectively improve turbine peak efficiency up to 8% at 6% nozzle opening. In addition, unsteady simulations were also carried out to investigate the interaction between rotor and nozzle, and the aerodynamic loading fluctuations on rotor blades were compared between split sliding guide vane and base model.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Numerical investigation of the split sliding guide vane for a variable nozzle turbine


    Beteiligte:
    Yang, Dengfeng (Autor:in) / Yang, Ce (Autor:in) / Hu, Leon (Autor:in) / Yi, J James (Autor:in) / Curtis, Eric (Autor:in) / Wooldridge, Margaret S (Autor:in)


    Erscheinungsdatum :

    01.07.2019


    Format / Umfang :

    11 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    A detailed investigation of a variable nozzle turbine with novel forepart rotation guide vane

    Yang, Dengfeng / Yang, Ce / Lao, Dazhong et al. | SAGE Publications | 2019


    Machining method of guide vane nozzle and guide vane nozzle

    HU BINBIN / CHENG ZHE / HAN HAIHUI et al. | Europäisches Patentamt | 2024

    Freier Zugriff


    AIAA-2005-1113 BALLISTIC COOLING OF TURBINE NOZZLE GUIDE VANE PLATFORMS

    Benton, R. / Rabe, G. / Schiffer, H.-P. et al. | British Library Conference Proceedings | 2005


    Coupled Heat Transfer Simulation of a High-pressure Turbine Nozzle Guide Vane

    Qiang, W. / Zhaoyuan, G. / Chi, Z. et al. | British Library Online Contents | 2009