28th Congress of the International Council of the Aeronautical Sciences, 23 - 28 September 2012, Brisbane, Australia
Paper ICAS 2012-3.9.2

ESTIMATION OF NOISE SHIELDING EFFECT OF NEXT-GENERATION AIRCRAFT BY A COMPUTATIONAL AEROACOUSTICS METHOD

Y. Fukushima
Tohoku Univ., Japan

Keywords: noise, silent aircraft, computational aeroacoustics

In this paper, using the Linearized Euler Equation, the noise shielding effect of airframe at different nacelle installation position is investigated. Block-structured Cartesian mesh method and immersed boundary method are employed to calculate efficiently and accurately. From results, appropriate position of engine nacelles is proposed for next-generation aircraft.

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