CFD ANALYSIS OF RB211AND CFM56 CHEVRON NOZZLES
نویسندگان
چکیده
منابع مشابه
Aeroacoustic Improvements to Fluidic Chevron Nozzles
Fluidic chevrons use injected air near the trailing edge of a nozzle to emulate mixing and jet noise reduction characteristics of mechanical chevrons. While previous investigations of “first generation” fluidic chevron nozzles showed only marginal improvements in effective perceived noise levels when compared to nozzles without injection, significant improvements in noise reduction characterist...
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Carla S. Fernandes a,∗, Ricardo P. Dias b,1, João M. Nóbrega c,2, João M. Maia c,2 a Departamento de Matemática, Escola Superior de Tecnologia e de Gestão, Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5301-857 Bragança, Portugal b Departamento de Tecnologia Quı́mica e Biológica, Escola Superior de Tecnologia e de Gestão, Instituto Politécnico de Bragança, Campus de Santa Apolónia...
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Particle Image Velocimetry (PIV) measurements for six separate flow bypass ratio five nozzle configurations have recently been obtained in the NASA Langley Jet Noise Laboratory. The six configurations include a baseline configuration with round core and fan nozzles, an eight-chevron core nozzle at two different clocking positions, and repeats of these configurations with a pylon included. One r...
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Sonic velocities of geologic fluids, such as volcanic magmas and geothermal fluids, can be as low as 1 m/s. Critical velocities in large rivers can be of the order of 1-10 m/s. Because velocities of fluids moving in these settings can exceed these characteristic velocities, sonic and supersonic gas flow and critical and supercritical shallow-water flow can occur. The importance of the low chara...
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ژورنال
عنوان ژورنال: JOURNAL OF MECHANICS OF CONTINUA AND MATHEMATICAL SCIENCES
سال: 2020
ISSN: 0973-8975,2454-7190
DOI: 10.26782/jmcms.2020.07.00034