[Reports] / Amer.inst.of aeronautics and astronautics. N 89-1136 : Noise and instability waves in supersonic jets in the proximity of flat and cylindrical walls : Rep. presented at the AIAA 12th aeroacoustics conf.,Apr.10-12,1989, San Antonio(Tx) / K.K.Ahuja,J.A.McCaulley,C.K.W.Tam, 1989. - 11 p. - Текст : непосредственный.