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Wolf, A., Lutz, T., Würz, W., Kramer, E., Stalnov, O., Seifert, A., et al. (2014) Trailing Edge Noise Reduction of Wind Turbine Blades by Active Flow Control. Journal of Wind Energy. http://dx.doi.org/10.1002/we.1737

has been cited by the following article:

• TITLE: Airfoil Trailing Edge Noise Generation and Its Surface Pressure Fluctuation

  AUTHORS: Weijun Zhu, Wenzhong Shen

  KEYWORDS: Large Eddy Simulation, Trailing Edge Noise, Surface Pressure

  JOURNAL NAME: Journal of Power and Energy Engineering, Vol.3 No.7, July 17, 2015

  ABSTRACT: In the present work, Large Eddy Simulation (LES) of turbulent flows over a NACA 0015 airfoil is performed. The purpose of such numerical study is to relate the aerodynamic surface pressure with the noise generation. The results from LES are validated against detailed surface pressure measurements where the time history pressure data are recorded by the surface pressure microphones. After the flow-field is stabilized, the generated noise from the airfoil Trailing Edge (TE) is predicted using the acoustic analogy solver, where the results from LES are the input. It is found that there is a strong relation between TE noise and the aerodynamic pressure. The results of power spectrum density show that the fluctuation of aerodynamic pressure is responsible for noise generation.