Coupling a boundary layer wall shear-stress model with field experiments in a shallow tidal river

Abstract

Recently, Mathis et al. (2011) developed a conceptual approach that is able to predict instantaneous wall-shear stress fluctuations in turbulent boundary layers. This approach embeds the scale interaction mechanisms, namely superposition and modulation, into a wall-model capable of predicting the fluctuating component of the streamwise wall-shear stress. The present study investigates the potential benefits of this new approach for research on environmental flows, where near-wall information is often missing. The database considered here comes from field measurements using acoustic Doppler velocimeters carried out in a shallow tidal river (Suisun Slough in North San Francisco Bay). Amongst t..