Abo Bibliothek: Guest
Eighth International Symposium on Turbulence and Shear Flow Phenomena
August, 28-30, 2013, Poitiers, Futuroscope, France

DOI: 10.1615/TSFP8

ON THE FUNDAMENTAL FLUCTUATING WALL-SHEAR-STRESS

pages 1-6
DOI: 10.1615/TSFP8.1260
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ABSTRAKT

Recent studies by Marusic et al. (2010) and Mathis et al. (2013) suggest the existence of a fundamental wall-shear-stress in any wall-bounded turbulent flow. It can be interpreted as a background turbulent wall-shear-stress free of Reynolds number effects. To investigate its universal aspect, here we report a statistical/spectral comparison of this fundamental wall-shear-stress in three different configurations: boundary layer, pipe, and channel flows. A model is proposed to generate a synthetic fundamental fluctuating wall-shear-stress surface, which can then be used to predict the 2D wall-shear-stress at any Reynolds number thanks to an inner-outer scale interaction model.

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