| Issue |
E3S Web Conf.
Volume 323, 2021
V International Scientific and Technical Conference Modern Power Systems and Units (MPSU 2021)
|
|
|---|---|---|
| Article Number | 00010 | |
| Number of page(s) | 4 | |
| DOI | https://doi.org/10.1051/e3sconf/202132300010 | |
| Published online | 10 November 2021 | |
A study of jet impingement cooling enhancement by concave and convex heat sink shape modifications
1 Institute of Fluid-Flow Machinery Polish Academy of Sciences, Department of Energy Conversion, 14 Fiszera street, 80-231 Gdańsk, Poland
2 Gdańsk University of Technology, Faculty of Mechanical Engineering and Ship Technology, 11/12 Narutowicza street, 80-233 Gdańsk, Poland
* Corresponding author: marcin.froissart@imp.gda.pl
The rising demand for efficient cooling technologies is a strong driver of extensive research in this area. This trend is particularly strong in turbines and microprocessors technology. Presented study is focused on the jet impingement cooling concept, which is used in various configurations for many years. The potential of the heat sink shape modification is not yet fully explored. Available literature suggests that average Nusselt number can be improved by more than 10% by adding conical shape in the stagnation region. This refers to the axisymmetric case where cold-water jet impinges the surface of heated aluminium. Presented results are based on 2D axisymmetric thermal-FSI (Fluid-Solid Interaction) model, which was validated against the experiment. The objective of the presented analysis is to determine the correlation between cooling effectiveness (Nusselt number) and chosen examples of concave and convex shapes located in the jet stagnation area.
© The Authors, published by EDP Sciences, 2021
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