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Experimental studies of zero pressure-gradient turbulent boundary layer flow

Experimental studies of zero pressure-gradient turbulent boundary layer flow,Jens M. Österlund

Experimental studies of zero pressure-gradient turbulent boundary layer flow   (Citations: 45)
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This thesis deals with the problem of high Reynolds number zero pressuregradientturbulent boundary layers in an incompressible flow without any effectsof heat-transfer. The zero-pressure gradient turbulent boundary layer isone of the canonical shear flows important in many applications and of largetheoretical interest. The investigation was carried out through an experimentalstudy in the MTL wind-tunnel at KTH, where the fluctuating velocity componentsand the fluctuating wall-shear stress ...
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    • ...Therefore, considerable efforts of experimental works and numerical computations for such flows along smooth and rough surfaces have been carried out, however, the greatest part was devoted to the smooth surfaces, see e. g.; Nagib et al. [2 − 4], Österlünd [5], Buschmann and Gad-el-Hak [6], Fernholz and Finley [7], Hafez [8], Zagarola and Smits [9]...
    • ...Another important point to notify is the definition of the origin of the boundary layer and whether it develops over the tunnel bottom wall or on a mounted plate inside the test section of the tunnel facility, see, e. g., Fernholz and Finley [7], Österlund [5], and Castillo et al. [15]...
    • ...For the sake of working with the oil film interferometry (OFI), the plate was blackned from the lower side to provide a suitable surface for the light reflection [5, 21]...
    • ...The existence of either the logarithmic or the power scaling profiles is well discussed in several sources such as Barenblatt [31], Österlund [5], Wosnik et al. [32], Buschmann and Gad-el-Hak [6], Zanoun et al. [23, 25], George et al. [20], Nagib et al. [2 − 4]...
    • ...According to Österlund [5], the inner limit of the overlap region scaled with the viscous length scale ν/u τ was estimated to be y...

    E.-S. Zanoun. Mean flow scaling along smooth and rough wall boundary layers

    • ...Here, we use a convenient self-consistent expression, recently proposed by Monkewitz, Chauhan & Nagib (2007), which very well fits the experimental data of ¨ Osterlund (1999)...

    CARLO C OSSUet al. Optimal transient growth and very large-scale structures in turbulent ...

    • ...It has also been shown by Österlund (1999) and Abe et al. (2001)) that the spanwise two-point correlations of the wall-shear stress sw and streamwise velocity fluctuation u...

    Qiang Liet al. DNS of a spatially developing turbulent boundary layer with passive sc...

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