27th Congress of International Council of the Aeronautical Sciences, 19 - 24 September 2010, Nice, France
Paper ICAS2010-P2.9

COMPUTATIONAL SIMULATION OF NOISE GENERATED AERODYNAMICALLY VIA DNS AND ACOUSTIC ANALOGY

L. F. Bergamo, E. M. Gennaro, M. A. F. de Medeiros
Univ. of São Paulo, Brazil

Keywords: aeroacoustics, lighthill, acoustic analogy, mixing layer

This paper presents a hybrid calculation method for the acoustic field generated by flow. It uses a DNS solver to the aerodynamic field and, to reduce the computational cost, an acoustic analogy is employed to predict the acoustic far field without the need of propagating the acoustic wave.

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