Traditional adjoint variables grow exponentially for turbulent chaotic flows. Most proposed methods (for example. ensemble adjoint, shadow-based, and unstable-subspace-based approaches, etc.) are computationally prohibitive for practical problems. In the current paper, we evaluate a stabilization approach for the adjoints of turbulent flows, which is computationally cheap compared to the previously mentioned methods. The stabilization method is motivated by studying the adjoint-energy budget. The resulting adjoint and the parameter sensitivity from the current approach are then compared with the shadow adjoint approach for the minimal flow unit.


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    Title :

    Stabilization of the Adjoint for Turbulent Flows


    Contributors:

    Published in:

    AIAA Journal ; 59 , 6 ; 2001-2013


    Publication date :

    2021-02-24


    Size :

    13 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




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