Stability of a subsonic gas microjet |
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| Authors: | V M Aniskin D A Bountin A A Maslov S G Mironov I S Tsyryul’nikov |
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| Institution: | 1.Khristianovich Institute of Theoretical and Applied Mechanics, Siberian Branch,Russian Academy of Sciences,Novosibirsk,Russia;2.Novosibirsk State University,Novosibirsk,Russia |
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| Abstract: | The stability of and the laminar-turbulent transition in a plane subsonic helium microjet flowing out into the atmosphere
is studied experimentally. The microjet experiences both natural perturbations and controlled periodic acoustic effects. The
averaged and instantaneous flow fields are visualized using the Schlieren method and particle tracking method. The pulsation
parameters of the mass flow rate are measured, and data for nonlinear interaction between the perturbations at the laminar-turbulent
transition in the microstructure are obtained by bispectral analysis. |
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