An open-source coupled method for aeroacoustics modelling

 In the present work, an open-source fast coupling interface for high-order acoustic propagation is presented. This interface is implemented between two open-source codes, OpenFOAM and Nektar++. The coupling interface is validated on a 2D cylinder case showing a very good agreement with the analytical solution and demonstrating its high efficiency as compared to traditional file-based coupled methods. A more realistic rod-airfoil wake interaction case is also studied to verify the applicability of the methodology in more complex configurations. Although the interface implementation is only realised for the chosen two open-source codes, its adaptation to other similar solvers/packages is expected to be straightforward.