Key points are not available for this paper at this time.
Large eddy simulations are performed to study tonal noise generation by a NACA0012 airfoil for Reynolds numbers in the range 0. 510^50{0ex}e410^5. Different flow patterns responsible for noise generation originate from laminar separation bubbles over the airfoil surface. Intermittency and flow transition to turbulence plays a key role in the noise spectrum.
Ricciardi et al. (Wed,) studied this question.