27th Congress of International Council of the Aeronautical Sciences, 19 - 24 September 2010, Nice, France
Paper ICAS 2010-3.10.2

NUMERICAL SIMULATION AROUND AIROFOIL WITH TONAL NOISE GENERATION

T. Kurotaki, T. Sumi*, J. Hiyama**
JAXA, Japan; *Tottori Univ., Japan; **Sanko Software Dept. Co. Ltd., Japan

Keywords: subsonic flow, tonal noise, unsteady flow, les, cfd

A new numerical approach is applied to the flow around an NACA0015 aerofoil with tonal noise generation. Numerical simulations capture the radiation of sound waves and separated regions at the trailing edge. The linear stability analysis shows that the most unstable frequency of T-S waves coincides with the peak frequency.

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