Effect of geometric parameters on the noise generated by rod-airfoil configuration

This paper investigates the effect of geometric parameters -- rod diameter and distance between airfoil on noise generated by rod-airfoil configuration using experimental numerical techniques. The simulations are carried out low-dissipation up-wind scheme Delayed-Detached-Eddy Simulation (DDES) approach with Shear-Layer Adapted (SLA) sub-grid length scale (SGS) for a faster transition RANS LES. A dual-time stepping strategy, leading to second-order accuracy in space time, is followed. Ffowcs-Williams Hawkings (FWH) technique used post-process pressure fluctuations predict far~field acoustics. corresponding detailed analysis, phased microphone array techniques aeroacoustic wind tunnel at Brandenburg Technical University Cottbus, validation method. key objective analysis examine influence generation. results show reasonable agreement data terms far-field