| Issue |
E3S Web Conf.
Volume 459, 2023
XXXIX Siberian Thermophysical Seminar (STS-39)
|
|
|---|---|---|
| Article Number | 04023 | |
| Number of page(s) | 4 | |
| Section | Hydrodynamics, Heat and Mass Transfer and Wave Processes in Multiphase Media | |
| DOI | https://doi.org/10.1051/e3sconf/202345904023 | |
| Published online | 04 December 2023 | |
Formation of volatile liquid jets in a rarefied medium
1 Novosibirsk State University, Department of Applied Physics, 630090, Russian Federation, Novosibirsk, Pirogova str., 2
2 Khristianovich Institute of Theoretical and Applied Mechanics SB RAS, 630090, Novosibirsk, Institutskaya str., 4/1, Russian Federation
* Corresponding author: yas@nsu.ru
The external signs and conditions for the occurrence of sudden changes in the direction of ethanol micro-jets during vertical, from top to bottom, outflow from small-diameter capillaries into a rarefied medium (vacuum) are considered. A brief description of the equipment used, the organization of liquid preparation for the experiment, and the control of parameters are given. With the help of photo and video equipment, sudden transitions from dark areas of the jet to light ones and vice versa, stratification of the liquid jet into two, three or more fan streams, i.e. bifurcation. It is shown that with a decrease in the diameter of the capillary opening, the jet outflow is more stable, and the flow can retain its shape for a relatively long period of time. The process established by other researchers of the flow of liquid drops up the capillary has been confirmed. The reliability of the obtained results was verified by comparison with the known data by organizing the outflow from the same capillaries into the atmosphere.
© The Authors, published by EDP Sciences, 2023
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