Flow and noise prediction for tandem cylinder

Results are presented of computations of aerodynamic characteristics and noise generated by the flow past tandem cylinders. The flow aerodynamics is modeled with the use of two hybrid RANS-LES approaches known as Improved Delayed Detached Eddy Simulation and Scale-Adaptive Simulation, while for the far-field noise prediction Ffowcs Williams and Hawkings method is used. Sensitivity of results of simulations to the span size of computational domain and to the order of approximation of the convective fluxes in the governing equations is analyzed, and comparison of numerical predictions with experimental data of NASA is carried out.