Abstract
The approach to the control of aerodynamic and acoustical characteristics of subsonic turbulent jets by means of weak acoustical disturbances was demonstrated in Chap. 2 and 3. In the present chapter we consider some results of experimental study for effects of intensive periodical and, particularly, acoustical disturbances on aerodynamic characteristics of turbulent jets. We do not concern energy benefits of such in the approach to control of turbulent jets. It should only be noted that a number of researchers have performed experimental studies of turbulent jet characteristics under periodical excitation of high intensity. However, the comparison of their results is rather difficult because the periodical in time law of jet expenditure modulation was determined by constructional features of devices (flow interrupters) generating pulsations in jets. This situation hampers generalization of results in the published papers or their correlation, as the flow structure in an excited jet appears to be dependent on the spectral composition of the periodical velocity pulsations and the turbulence scale at the nozzle outlet section. This fact is confirmed by essential distinctions in the propagation laws for highly excited turbulent jets deduced in different authors’ papers [4.2, 4.3, 4.5, 4.6, 4.8].
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© 2004 Springer-Verlag Berlin Heidelberg
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Ginevsky, A.S., Vlasov, Y.V., Karavosov, R.K. (2004). Effect of Intensive Acoustic Disturbances on Subsonic Jets. In: Acoustic Control of Turbulent Jets. Foundations of Engineering Mechanics. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-39914-8_4
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DOI: https://doi.org/10.1007/978-3-540-39914-8_4
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-05764-9
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