Abstract The interaction between a turbulent free-stream and a turbulent boundary layer is investigated through particle image velocimetry measurements. An ‘interaction layer’ located between 0.12 y / δ 0.19 , at the end of the log layer, is identified whereby the kinetic energy in this layer describes the flow above it. Conditional averages about the interaction layer indicate that it is home to peaks in the Reynolds stresses and that it is the location of a change in the vortical structure. Furthermore, the conditional information identifies that low kinetic energy deficit states in the interaction layer result in a more full boundary layer profile due to increased movement of the bulk flow towards the wall.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Interaction Layer Between a Turbulent Boundary Layer and Free-Stream Turbulence


    Contributors:


    Publication date :

    2016-01-01


    Size :

    8 pages





    Type of media :

    Article/Chapter (Book)


    Type of material :

    Electronic Resource


    Language :

    English




    Turbulent boundary layer with free stream turbulence

    MURTHY, S. / HONG, S. | AIAA | 1990





    High Free-stream Turbulence Over a Rough Favorable Pressure Gradient Turbulent Boundary Layer

    Torres-Nieves, Sheilla / Lebron-Bosques, Jose / Brzek, Brian et al. | AIAA | 2008