| Issue |
MATEC Web Conf.
Volume 115, 2017
XXXIII Siberian Thermophysical Seminar (STS-33)
|
|
|---|---|---|
| Article Number | 02018 | |
| Number of page(s) | 4 | |
| Section | Chapter 2 Turbulent flows, heat and mass transfer in single-phase flows, heat transfer enhancement | |
| DOI | https://doi.org/10.1051/matecconf/201711502018 | |
| Published online | 10 July 2017 | |
Investigating the round air jet dynamics at low Reynolds numbers
1 Kutateladze Institute of Thermophysics SB RAS, 630090, 1 Ac. Lavrentiev Ave., Novosibirsk, Russia
2 Novosibirsk State Technical University, 630073, 20 Karl Marks Ave., Novosibirsk, Russia
* Corresponding author: sharov@itp.nsc.ru
The laminar-turbulent transition in a round jet flowing from a cylindrical channel with the diameter of 3.2 mm was studied experimentally. In experiments, the range of Reynolds numbers determined by the mean-flow velocity was Re = Ud/v = 700-12000. The measurements were carried out using a PIV system and one-component hot-wire anemometer. The profiles of average velocities and their pulsations in the zone of laminar-turbulent transition were obtained, as well as axial distributions of longitudinal velocity and pulsations of longitudinal velocity.
© The Authors, published by EDP Sciences, 2017
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