Numerical simulation and noise prediction of the aerial propeller

摘要

In this paper, the aerodynamic and acoustic performances of an aerial propeller are evaluated. In the aerodynamic analysis, the RANS (Reynolds-averaged Navier-Stokes) method combined with CFD (Computational Fluid Dynamics) technique is used. The acoustic analysis is based on Farassat 1A which derived from FW-H (Ffowcs Williams-Hawkings) equation. The pressure of the aerodynamic analysis is given as the input of the acoustic calculation. The acoustic analysis also draws some meaningful conclusions.