| Issue |
E3S Web Conf.
Volume 592, 2024
International Scientific Conference Energy Management of Municipal Facilities and Environmental Technologies (EMMFT-2024)
|
|
|---|---|---|
| Article Number | 02019 | |
| Number of page(s) | 8 | |
| Section | Thermophysics and Physical Hydrodynamics | |
| DOI | https://doi.org/10.1051/e3sconf/202459202019 | |
| Published online | 20 November 2024 | |
Investigation of local heat fluxes in the contact line area during the growth of a single vapor bubble under microgravity conditions
1 Kutateladze Institute of Thermophysics, Av. Lavrentyev, 1, Novosibirsk 630090, Russia
2 Novosibirsk State University, Pirogova St., 1, Novosibirsk 630090, Russia
3 Université libre de Bruxelles, TIPs, CP 165/67, Av. F.D. Roosevelt 50, 1050, Belgium
4 Aix Marseille Université, CNRS, Laboratoire IUSTI, UMR 7343, 5 rue Enrico Fermi, 13453, France
* Corresponding author: a.zorkina@g.nsu.ru
The present work is devoted to the study of heat fluxes from a heating surface into a liquid during single vapor bubble growth. The experiment was conducted as part of the RUBI (Reference mUltiscale Boiling Investigation) boiling project implemented on the International Space Station between 2019 and 2021. Since microgravity increases the spatial and temporal resolution of the problem, this made it possible to study in detail the processes of heat and mass transfer in the area of a three-phase contact line. The paper presents a developed algorithm for determining heat fluxes and the amount of heat transferred from various zones at different experimental parameters: from the contact line area, from the centre under the bubble and from the liquid-vapor interface. In particular, it is shown that it is in the area of the contact line that the maxima of heat fluxes are observed and that evaporation from this area makes a significant contribution to the growth of the bubble (about 50%).
© The Authors, published by EDP Sciences, 2024
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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