For a flat plate with blunt trailing and leading edge, effect of favorable pressure gradient on the trailing noise is investigated using large eddy simulation (LES) for simulating flow field and a frequency-domain prediction model for the trailing edge noise. Flow field around the flat plate is predicted using the LES and then wall pressure spectra obtained from the LES results are compared to experimental data available from the literature. This comparison reveals that the predicted spectrum in the high frequency region falls down more sharply than the measurement. This high frequency behavior is identified to be due to favorable pressure gra-dient (FPG) boundary layer. Far-field acoustic pressure is predicted using the frequency do-main acoustic model that uses the wall pressure spectrum as input data. The predictions using the wall pressure spectrum including the effects of FPG boundary layer are found to be closer agreement to the measured data, especially in the high frequency range.
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