Abstract
Trailing edge noise can be predicted with the help of a synthetic turbulent velocity field. Aasuming isotropic conditions this field may be generated via an energy spectrum of turbulence like the modified von Karman spectrum (MVKS). In this work one-dimensional wavenumber spectra of turbulence obtained from hot-wire measurements at the trailing edges of a thin, flat plate and a NACA0012 airfoil were compared to the respective spectra extracted from the MVKS. Good agreement at all measuring positions is possible with a modified form of the MVKS. The remaining discrepancies can be attributed to the anisotropy of boundary layer turbulence.
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