A total of 106 numerical simulations were done with Delft3D to investigate the influence of lee side shape on time-averaged flow properties and turbulence. This dataset presents a summary of the key parameters calculated from the numerical simulations: the bed smoothness, the mean lee side angle, the steep portion angle, the steep portion position, the dune length, the dune height, the steep portion height, the flow separation zone length, the maximum and mean Turbulent Kinetic Energy and the length of the wake.