Free-surface flow behind elastic plate impacting on a thin liquid layer

Shishmarev, K. A., Khabakhpasheva, T. I. ORCID: and Korobkin, A. A. ORCID: (2020) Free-surface flow behind elastic plate impacting on a thin liquid layer. Journal of Physics: Conference Series, 1666. ISSN 1742-6588

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The problem of an inclined impact by an elastic plate on a thin liquid layer is considered. Evolution of the flow behind the plate is studied. The main input parameters are the position of the separation point of the liquid from the plate and the speed of the liquid under this point. The flow in the wake behind the plate is described by shallow water equations without gravity. Analytical formulae for the shape of the free surface behind the plate are derived. The study is focused on the possibility of the formation of jets arising from the wake perpendicular to the liquid layer. The problem is solved in two stages: before and after the formation of the first such a jet. The effects of the flow speed at the beginning of the wake, its time derivative, and the law of motion of the separation point on the formation of jets are investigated. The positions of the jets, their speeds and shapes are determined. Using the obtained results, mechanisms of the thin layer aeration behind the plate are discussed.

Item Type: Article
Faculty \ School: Faculty of Science > School of Mathematics
UEA Research Groups: Faculty of Science > Research Groups > Fluid and Solid Mechanics
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Depositing User: LivePure Connector
Date Deposited: 24 Feb 2021 00:57
Last Modified: 08 Mar 2024 08:31
DOI: 10.1088/1742-6596/1666/1/012059


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