Reduction of aerodynamic noise from square bars by introducing spanwise waviness

This paper presents an investigation, using both numerical and experimental methods, of the application of spanwise waviness to reduce aerodynamic noise from square bars. The numerical simulations are performed using the Delayed Detached-Eddy Simulation approach to obtain the near-field unsteady flo...

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Veröffentlicht in:	Journal of sound and vibration 2018-11, Vol.435, p.323-349
Hauptverfasser:	Liu, X.W., Hu, Z.W., Thompson, D.J., Jurdic, V.
Format:	Artikel
Sprache:	eng
Schlagworte:	Aerodynamic noise Aerodynamic noise reduction Aerodynamics Amplitudes Broadband Computational fluid dynamics Computer simulation Cross flow Detached eddy simulation Far fields Ffowcs Williams-Hawkings equation Fluid flow Influence Noise Noise levels Noise prediction Noise reduction Noise spectra Numerical analysis Numerical methods Pantograph Simulation Spanwise waviness Square bars Studies Unsteady flow Vortex shedding Vortices Waviness
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