Reflectionless wave propagation on shallow water with variable bathymetry and current. Part 2
Article
Article Title | Reflectionless wave propagation on shallow water with variable bathymetry and current. Part 2 |
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ERA Journal ID | 1294 |
Article Category | Article |
Authors | Churilov, Semyon M. (Author) and Stepanyants, Yury A. (Author) |
Journal Title | Journal of Fluid Mechanics |
Journal Citation | 939, pp. 1-12 |
Article Number | A15 |
Number of Pages | 12 |
Year | 2022 |
Publisher | Cambridge University Press |
Place of Publication | United Kingdom |
ISSN | 0022-1120 |
1469-7645 | |
Digital Object Identifier (DOI) | https://doi.org/10.1017/jfm.2022.208 |
Web Address (URL) | https://www.cambridge.org/core/journals/journal-of-fluid-mechanics/article/reflectionless-wave-propagation-on-shallow-water-with-variable-bathymetry-and-current-part-2/A19780F4ADA447FFDD06DB498CE2DD35 |
Abstract | We show that in the linear approximation there are three classes of reflectionless wave propagation on a surface of shallow water in the channel with spatially varying depth, width and current speed. Two of these classes have been described in our previous paper (Churilov & Stepanyants, J. Fluid Mech., vol. 931, 2022, A15), and the third one was discovered recently and is described here. The general analysis of the problem shows that, within the approach used in both of our papers, these three classes apparently exhaust all possible cases of exact solutions of the problem considered.We show that the reflectionless flow can be global for certain conditions, i.e. it can exist on the entire x-axis. There are also reflectionless flows which exist only on limited intervals of the x-axis. |
Keywords | ocean processes; shallow water flows; surface gravity waves |
ANZSRC Field of Research 2020 | 370803. Physical oceanography |
490109. Theoretical and applied mechanics | |
510399. Classical physics not elsewhere classified | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Russian Academy of Sciences, Russia |
School of Sciences | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q72y9/reflectionless-wave-propagation-on-shallow-water-with-variable-bathymetry-and-current-part-2
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