INFLUENCE OF AMPLITUDE FROM TWO TRANSVERSE DISTURBANCE SOURCES ON THE SPLITTING OF A ROUND JET
O. S. Van’kova, S. N. Yakovenko
Khristianovich Institute of Theoretical and Applied Mechanics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
Keywords: subsonic round jet, transverse disturbance, jet bifurcation, flow control
Abstract
We present a numerical study of a submerged round jet at a low Reynolds number, subjected to harmonic disturbances from two sources positioned at opposite lateral boundaries near the inlet section. Our results demonstrate that, for a specific combination of control parameters, the flow undergoes bifurcation, splitting into two distinct branches-a phenomenon also observed in various other experimental and computational studies involving different types of acoustic and mechanical disturbances. The time-averaged flow velocity fields are computed. The effect of the disturbance amplitude on the jet behavior is investigated, and a critical amplitude threshold, above which flow splitting occurs, is identified.
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