A flow control device (12) on a structure (2) such that strain in the structure is at least partially transferred to the flow control device (12). The flow control device (12) has at least two states, or shapes, separated by an elastic instability region. The flow control device (12) is arranged to rapidly transition, or snap through, from the first state to the second state when strain in the structure exceeds an activation threshold of the flow control device. In an example, a spoiler (12) on an aerofoil (2) has a rest position where it is substantially flush with the low pressure surface and an activated position where it protrudes from the low pressure surface and modifies the airflow over that surface. The spoiler bends to move from the rest position to the activated position when the strain in the aerofoil crosses a threshold. The deployed spoiler reduces the lift on the aerofoil, acting to reduce the lift induced strain of the aerofoil to which the spoiler is attached.


    Access

    Download


    Export, share and cite



    Title :

    FLOW CONTROL DEVICE


    Additional title:

    FLUSSREGELUNGSVORRICHTUNG
    DISPOSITIF DE RÉGULATION DE FLUX


    Contributors:

    Publication date :

    2024-02-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge



    Flow control device

    COSENTINO ENZO / LLEWELLYN-JONES CATHERINE / ARENA GAETANO et al. | European Patent Office | 2023

    Free access

    Flow control device

    European Patent Office | 2020

    Free access

    FLOW CONTROL DEVICE

    COSENTINO ENZO / LLEWELLYN-JONES CATHERINE / ARENA GAETANO et al. | European Patent Office | 2023

    Free access

    FLOW CONTROL DEVICE

    COSENTINO ENZO / LLEWELLYN-JONES CATHERINE ROSE | European Patent Office | 2022

    Free access

    Flow control device

    ENZO COSENTINO / CATHERINE LLEWELLYN-JONES | European Patent Office | 2022

    Free access