Dissecting non-equilibrium effects in wall turbulence

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This project aims to progress understanding of wall-bounded turbulent flows under non-equilibrium conditions. The focus is on turbulent flows over rough surfaces where the bulk flow decelerates along the streamwise length of the surface. Such flows are regularly encountered in important practical applications, such as over the trailing edge of an airplane wing or inside a flow diffuser, which are ubiquitous in industry. Novel experiments and numerical simulations will provide the definitive data needed in order to uncover the scaling laws of these flows, thus enabling their reliable prediction.