A physics-based description and modelling of the wall-pressure fluctuations on a serrated trailing edge

A physical description of the flow mechanisms that govern distribution wall-pressure fluctuations over surface a serrated trailing edge is proposed. Three main define variation turbulent pressure across are discussed and semi-empirical models formulated accordingly. It shown intensity increases at tips under effect an increased convective velocity as result sidewise momentum diffusion. Furthermore, change impedance causes local reduction in vicinity edge. Finally, aerodynamic loading serrations due to non-symmetric created different angles attack establishes secondary patterns induce higher serration edges. The latter present only for high loading, while former ones observed any conditions. Semi-empirical predicting based on three described. These calibrated compared against experiments conducted symmetric airfoil model Reynolds numbers.