https://doi.org/10.1051/epjconf/201919600046
The flow structure of submerged round jets at low Re numbers
1 Kutateladze Institute of Thermophysics SB RAS, 630090, 1 Ac. Lavrentiev Ave., Novosibirsk, Russia
2 Novosibirsk State University, 630090, 1 Pirogov St., Novosibirsk, Russia
* Corresponding author: sharov@itp.nsc.ru
Published online: 14 January 2019
An experimental investigation of a laminar-turbulent transition in a round jet flowing from a cylindrical tube with a diameter of 3.2 mm have been carried out. The range of Reynolds numbers in the experiments Re = Ud / v were of 700-12000. The measurements have been carried out via the PIV system. The profiles of average velocities and their pulsations in the laminar-turbulent transition zone have been obtained, as well as axial distributions of the longitudinal velocity and longitudinal velocity pulsations. Based on a comparison with the data of other authors, the effect of the initial conditions on the laminar-turbulent transition in a submerged jet has been shown.
© The Authors, published by EDP Sciences, 2019
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