DECREASE IN THE NOISE OF A SUBSONIC TURBULENT JET EJECTED FROM A RING NOZZLE WITH LONGITUDINAL SLOTS
E. V. Vlasov, A. S. Ginevskii, R. K. Karavosov, T. M. Makarenko, and A. G. Nalivaiko UDC 532.525.2:534.2 The results of investigations of the aerodynamic and acoustic characteristics of a jet ejected from a ring nozzle with longitudinal slots are presented. It is shown that these slots markedly influence the jet mixing and substantially decrease the jet noise generated in a wide frequency range. Branch of the Central Aerohydrodynamics Institute, 17 Radio Str., Moscow, 105005; email: ginevsky@orc.ru. Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 79, No. 3, pp. 82-84, May-June, 2006. Original article submitted May 15, 2005.