Numerical and laboratory study of flows around a tilted plate

The structure and dynamics of flows near a tilted plate in stratified and homogeneous fluids are studied numerically and experimentally for various flow regimes. The numerical study is based on the fundamental system of equations, which allows calculating flows of both stratified and homogeneous viscous fluids in a unified formulation. Instantaneous patterns of velocity, density and vorticity fields are analyzed at different inclination angles, velocity of movement of the plate and buoyancy frequencies of the fluid. Special attention is paid to the flow fine structure near the front edge of the plate, where the most intensive interaction processes of multiscale flow elements are manifested. The calculation and laboratory results are in a good qualitative and quantitative agreement for all the flow regimes considered.