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Visualization of Mechanical Processes: An International Online Journal


ISSN On-line: 2152-209X

Archives: Volume 1, 2011 to Volume 9, 2019

Visualization of Mechanical Processes: An International Online Journal

DOI: 10.1615/VisMechProc.2014007107

VISUALIZATION OF A SUBSONIC JET WITH ACOUSTIC EXCITATION

Tatiana M. Makarenko
Central Aerohydrodynamic Institute (TsAGI), 1 Zhukovsky St., TsAGI Zhukovsky, Moscow region, 140180, Russia

RESUMO

Results of visualization studies of a low-speed turbulent jet from a circular 20-mm-diameter nozzle upon a longitudinal acoustic excitation within a frequency range of 0.125 ≤ Sts ≤ 2.5 are presented. Jet velocity u0 = 20 m/s, and the initial turbulence on the jet axis does not exceed 1%. Qualitative and quantitative characteristics of coherent structures in the turbulent jet upon acoustic effect are obtained


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