Ducted fan is a potential propulsion unit for flying cars in the future, and it has a wide range of application prospects. In ground effect, due to the aerodynamic interference with the ground, the ducted fan easily enters an unstable state caused by rotating stall. In this paper, a simulation platform is built based on a modified MG model, and the simulation of the ducted fan in ground effect is carried out for hovering and landing conditions. The static and dynamic effects of the ground effect are discussed in detail and the sensitivity analysis of parameters is carried out. The results showed that the instability of the ducted fan increases with the decrease in altitude or the increase in speed under hovering conditions, while it doesn’t occur under landing conditions. In addition, the study pointed out that the pressure rise characteristics and flow characteristics of the ducted fan have a significant impact on its instability. The combination of high peak pressure rise coefficient and low corresponding flow coefficient can effectively improve the stability.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Research on Instability Characteristics of Ducted Fans in Ground Effect


    Additional title:

    Lect. Notes Electrical Eng.


    Contributors:
    Zhou, Dawei (author) / Luo, Yiwei (author) / Jin, Yuzhi (author) / Qian, Yuping (author) / Zhang, Yangjun (author)

    Conference:

    Society of Automotive Engineers (SAE)-China Congress ; 2022 ; Shanghai, China November 22, 2022 - November 24, 2022



    Publication date :

    2023-04-29


    Size :

    14 pages





    Type of media :

    Article/Chapter (Book)


    Type of material :

    Electronic Resource


    Language :

    English




    Research on Instability Characteristics of Ducted Fans in Ground Effect

    Zhou, Dawei / Luo, Yiwei / Jin, Yuzhi et al. | TIBKAT | 2023


    Ducted fans

    Patterson, G.N. | Engineering Index Backfile | 1944


    A Moore-Greitzer Model for Ducted Fans in Ground Effect

    Y. Jin / Y. Fu / Y. Qian et al. | DOAJ | 2020

    Free access

    FLOW CONTROL DUCTED FANS

    NADEL ADAM / BALTADJIEV NIKOLA / PRETE ANTHONY et al. | European Patent Office | 2024

    Free access

    Flow control ducted fans

    NADEL ADAM / BALTADJIEV NIKOLA / PRETE ANTHONY et al. | European Patent Office | 2024

    Free access