A universal turbulence dissipation inhomogeneity law in the wake of two side-by-side square cylinders
The topic of this seminar is the scaling of the turbulent kinetic energy dissipation rate. The non-equilibrium energy dissipation rate scaling has been observed in various turbulent flows (e.g. see review by Vassilicos in ARFM 2015). However, all previous studies on the non-equilibrium energy dissipation phenomenon have focused on non-stationarity, i.e. dissipation evolution in time and in streamwise direction (closely related by mean flow convection). The present study focuses on non-homogeneity and examines the scaling of the energy dissipation rate in the lateral direction in the wake of two side-by-side square cylinders, aiming to provide insight into the non-equilibrium dissipation phenomenon in space rather than time.
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Simulation and modelling of wind-farm blockage and wakes
Johan Meyer is a full professor at the department of Mechanical Engineering, KU Leuven, Belgium. He is an internationally recognized expert in wind-farm aerodynamics and wind-farm atmosphere interactions. He leads a team of 10 researchers (PhDs and postdocs), specializing in numerical simulation, high performance computing, optimization and optimal control of turbulent flows. Johan Meyer acquired an ERC grant on windfarm control in 2012, and has been involved in various EU projects on wind energy since. He has been vice-president (2017-2019) and president (2019-2021) of the European Academy of Wind Energy. He also has been an associate editor of Computers and Fluids, and currently of Wind Energy Science.