Reducing the internal flow resistance of turbine blades can improve the overall efficiency of aero engines. To address the issue of the large internal flow losses in traditional horizontal exhaust slots for trailing edge cooling, structure of radially tilted trailing edge slots was proposed in previous work, and the flow resistance reduction ability of the novel scheme was investigated through numerical simulations under typical engine working conditions. Building on this, this research aimed to investigate the flow resistance of both novel and traditional schemes under ordinary pressure conditions through a combination of experimental and numerical methods. The results indicated that the tilted scheme exhibited a reduction in total pressure loss of approximately 5.7–9.1% compared to the horizontal one at the same Reynolds number. The analysis and comparison of the internal flow field details of the two schemes was conducted, which indicated that the tilted slots effectively suppressed vortex generation by reducing the coolant turning angle, resulting in lower flow losses. These research works have demonstrated the clear advantages of utilizing tilted trailing edge slots in reducing internal flow resistance, which would provide a reference for the high-performance aero engines in the future.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Experimental and Numerical Study on Flow Resistance of Turbine Blade Tilted Trailing Edge Slots


    Additional title:

    Lect. Notes Electrical Eng.


    Contributors:
    Fu, Song (editor) / Kong, Xingao (author) / Lv, Dong (author) / Liu, Yingshi (author) / Shi, Lei (author) / Wu, Weilong (author)

    Conference:

    Asia-Pacific International Symposium on Aerospace Technology ; 2023 ; Lingshui, China October 16, 2023 - October 18, 2023



    Publication date :

    2024-07-02


    Size :

    11 pages





    Type of media :

    Article/Chapter (Book)


    Type of material :

    Electronic Resource


    Language :

    English




    Rapid modeling of trailing edge slots in bowed-twisted turbine blade

    Baoyuan, Z. / Ping, X. / Jiong, Y. | British Library Online Contents | 2014



    Wind turbine blade having a trailing edge flap

    WHITEHOUSE DANIEL / BHANGAL JAGJIT | European Patent Office | 2020

    Free access

    Experimental Study of Water-Phase's Movements near Trailing Edge of Turbine Stationary Blade

    Zhanbo, D. / Jingru, M. / Bi, S. | British Library Online Contents | 2005