[Reports] / Amer.inst.of aeronautics and astronautics. N 90-3920 : Numerical simulation of acoustic diffraction of two-dimensional rigid bodies in arbitrary flows : Rep.presented at AIAA 13th aeroacoustics con.,Oct.22-24,1990,Tallahassee,Fl. / K.S.Huh,R.K.Agarwal,S.E.Widnall, 1990. - 21 p. - Текст : непосредственный.