Numerical prediction of aerodynamic sound using large eddy simulation

The present paper discusses a numerical prediction method of aerodynamic sound generated by a solid in low Mach number turbulent flow. A target flow phenomenon is calculated by the large eddy simulation (LES) assumed incompressibility. Using results of LES, the Lighthill's equation is solved approximately and the generated sound is predicted. To examine the accuracy of the method, the sound generated by a flat plate in turbulence is calculated and compared with the experimental data.