The solution of the AeroAcoustics (CAA) problems by means of the Direct Numerical Simulation (DNS) or even the Large Eddy Simulation (LES) for a large computational domain is very time consuming and cannot be applied widely for engineering applications. In this paper the in-house CFD and CAA codes are presented. The in-house CFD code is based on the LES approach whereas the CAA code is an acoustic postprocessor solving the non-linearized Euler equations for fluctuating (acoustic) variables. These codes are used to solve the aerodynamically generated sound field by a flow over a rectangular cavity with inlet Mach number 0.53.
S. Dykas, W. Wróblewski and T. Chmielniak, “Using a CFD/CAA Technique for Aerodynamic Noise Assessment,” Proceedings of ASME Turbo Expo 2008: Power for Land, Sea and Air GT2008, Berlin, 9-13 June 2008, pp. 784-794.