Numerical simulation of evolution of a curved turbulent wake subjected to adverse pressure gradient

Results are presented of the numerical experiments aimed at obtaining detailed and high-fidelity data on mean and turbulent characteristics of the asymmetric curved turbulent wake behind a flat plate subjected to adverse pressure gradient. The computations are performed for the model wake configuration designed earlier by the authors with the use of the scale-resolving zonal RANS-IDDES approach to turbulence representation. The reliability of the obtained results is confirmed by the grid independence of the obtained solutions, and a comparison of these results with the corresponding results of computations performed with the use of various semi-empirical RANS models indicates insufficient accuracy of the latter and necessity of their further improvement.