Computational Modelling Group

Aerofoil noise

15th April 2008
14th April 2010
Richard Sandberg

Aerofoil self-noise visualised using dilatation rate. Flow visualised using iso-surfaces of spanwise vorticity component.

Aerofoil self noise, i.e. the noise generated by the interaction of an aerofoil with its boundary layers and wake, is one of the dominant noise sources in many applications, such as fan blades in aero-engines, flaps on airframes, or wind turbines. Typically, only trailing-edge noise is considered. In the current project, direct numerical simulations are conducted of flow over aerofoils in order to investigate the mechanisms of noise generation and potentially identify sources of aerofoil noise other than trailing-edge noise. Also, noise reduction measures such as trailing-edge serrations are investigated to see their effect on both the acoustic and hydrodynamic field.


Physical Systems and Engineering simulation: Acoustics, CFD

Algorithms and computational methods: Finite differences

Visualisation and data handling software: TecPlot

Programming languages and libraries: Fortran, MPI

Computational platforms: HECToR, HPCx, Iridis

Transdisciplinary tags: HPC, Scientific Computing