Turbulent flow is ubiquitous in nature and also has wide industrial applications. The direct observation of turbulent flow can help us to gain the fundamental insights of its physics. However, the experimental measurement of complete velocity fields in real time with high spatial and temporal resolutions is difficult due to the limitations of sensors and sensing techniques, such as sensor accessibility and sampling rate. Recently, a physics-based compressive sensing (PBCS) approach was proposed to reduce the number of sensors and amount of data collection to monitor temperature distributions with a very high compression ratio. In this Paper, the PBCS mechanism for monitoring turbulent flow is formulated. By recovering the boundary conditions in the Reynolds-averaged Navier–Stokes equations from some limited velocity measurements, the complete velocity field is reconstructed from the model. The application of PBCS to the steady-state turbulent flow is demonstrated and validated with experimental data of direct measurements.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Physics-Based Compressive Sensing Approach to Monitor Turbulent Flow


    Contributors:
    Lu, Yanglong (author) / Wang, Yan (author)

    Published in:

    AIAA Journal ; 58 , 8 ; 3299-3307


    Publication date :

    2020-05-26


    Size :

    9 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Physics based Compressive Sensing Approach Applied to Airfoil Data Collection and Analysis

    Glauser, M. / Varshney, P. / Wimalajeewa, T. et al. | British Library Conference Proceedings | 2013


    Physics of Turbulent Flow

    ERIK MOLLO-CHRISTENSEN | AIAA | 1971


    Physics of turbulent flow

    MOLLO-CHRISTENSEN, E. | AIAA | 1970


    Compressive Coherence Sensing

    Marks, D. | British Library Conference Proceedings | 2009


    Compressive Sensing Demystified

    Bucholtz, F. / Nichols, J.M. | British Library Online Contents | 2014