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.