Hydraulic jumps & the role of surface tension

Calver, E., Pryer, T. and Lukyanov, A. V. (2022) Hydraulic jumps & the role of surface tension. Physics Letters A, 451. 128418. ISSN 0375-9601 doi: 10.1016/j.physleta.2022.128418

Abstract/Summary

Recent experiments involving generation of a hydraulic jump in liquid flows have led to a number of disputes about the role of surface tension in the process. This in turn instigated a revision of the main mechanisms and criteria of the jump formation. To clarify the issue of the surface tension effects, we have analysed liquid flows with a hydraulic jump region in the framework of a full depth-averaged thin film model (DAM). After benchmarking the model, we have performed broad parametric analysis of the problem. It has been established that while there is excellent agreement with the laminar flow observations, the surface tension effects only contribute to the shape of the transition region, but do not affect the position of the jump, that is, they are practically negligible. The results have repercussions on further developments of the jump formation theory, in particular, on the role of turbulence effects.

Item Type	Article
URI	https://reading-clone.eprints-hosting.org/id/eprint/107054
Identification Number/DOI	10.1016/j.physleta.2022.128418
Refereed	Yes
Divisions	Science > School of Mathematical, Physical and Computational Sciences > Department of Mathematics and Statistics
Publisher	Elsevier
Download/View statistics	View download statistics for this item