Observations and simulations are presented of a supersonic jet from a nozzle representative of high-performance military aircraft such as the Saab Gripen. The nozzle has a design Mach number of 1.56 and is examined at its design condition with a surrounding secondary flow at Mach numbers of 0.0, 0.1 and 0.3. Chevrons and internal fluidic injection by microjets each reduce the noise generated by the main jet.
- International Gas Turbine Institute
Techniques for Supersonic Turbojet Noise Reduction
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Munday, D, Cuppoletti, D, Perrino, M, Gutmark, E, Burak, MO, & Eriksson, L. "Techniques for Supersonic Turbojet Noise Reduction." Proceedings of the ASME Turbo Expo 2012: Turbine Technical Conference and Exposition. Volume 1: Aircraft Engine; Ceramics; Coal, Biomass and Alternative Fuels; Controls, Diagnostics and Instrumentation. Copenhagen, Denmark. June 11–15, 2012. pp. 51-61. ASME. https://doi.org/10.1115/GT2012-68304
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