Conference Proceedings

Reconstruction of wall shear-stress fluctuations in a shallow tidal river

R Mathis, I Marusic, O Cabrit, NL Jones, GN Ivey, M Stanislas (ed.), J Jimenez (ed.), I Marusic (ed.)

ERCOFTAC Series | Springer International Publishing | Published : 2016

Abstract

© Springer International Publishing Switzerland 2016. In this paper, we investigate the applicability of the predictive wall shearstress model, recently developed by Mathis et al. J. Fluid Mech. 715, 163-180, 2013, [17], to environmental flows where near-wall information is typically inaccessible. This wall-model, which embeds the scale interaction mechanisms of superposition and modulation, is able to reconstruct the instantaneous wall (bed) shear-stress fluctuations in turbulent boundary layers. The database considered here comes from field measurements using acoustic Doppler velocimeters carried out in a shallow tidal channel (Suisun Slough in North San Francisco Bay). The model is first ..

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