Abstract
Two-point correlations of the fluctuating streamwise velocity are examined in the atmospheric surface layer over the salt flats of Utah’s western desert, and corresponding structure inclination angles are obtained for neutral, stable and unstable conditions. The neutral surface-layer results supplement evidence for the invariance of the inclination angle given in Marusic and Heuer (Phys Rev Lett 99:114504, 2007). In an extension of those results it is found that the inclination angle changes drastically under different stability conditions in the surface layer, varying systematically with the Monin–Obukhov stability parameter in the unstable regime. The variation is parametrized and subsequently can be used to improve existing near-wall models in the large-eddy simulation of the atmospheric surface layer.
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Chauhan, K., Hutchins, N., Monty, J. et al. Structure Inclination Angles in the Convective Atmospheric Surface Layer. Boundary-Layer Meteorol 147, 41–50 (2013). https://doi.org/10.1007/s10546-012-9777-7
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DOI: https://doi.org/10.1007/s10546-012-9777-7