Eames, Ian;
Robinson, tristan;
(2024)
Free-surface channel flow around a square cylinder.
Journal of Fluid Mechanics
, 980
, Article A16. 10.1017/jfm.2023.964.
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Abstract
The free-surface channel flow around a square cylinder is analysed, over a wide range of blocking ratios, using three-dimensional simulations. The state of the flow is characterised in terms of the Froude number upstream and downstream of the square cylinder. The simulations confirm the presence of the subcritical and choked states, and provide new insight into the supercritical state and band-gap through an analysis of how the momentum flux varies with Froude number along the channel. The influence of the blocking ratio on the flow state and drag force is analysed and shows the significant rise of drag in the choked regime.
| Type: | Article |
|---|---|
| Title: | Free-surface channel flow around a square cylinder |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1017/jfm.2023.964 |
| Publisher version: | https://doi.org/10.1017/jfm.2023.964 |
| Language: | English |
| Additional information: | This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third-party material in this article are included in the Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
| Keywords: | Computational methods, channel flow, wave–structure interactions |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Mechanical Engineering |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10187663 |
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