Ship waves on an elastic floating ice plate
Article
Article Title | Ship waves on an elastic floating ice plate |
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ERA Journal ID | 211211 |
Article Category | Article |
Authors | Badulin, Sergei, Gnevyshev, Vladimir and Stepanyants, Yury |
Journal Title | Physical Review Fluids |
Journal Citation | 10 |
Article Number | 034801 |
Number of Pages | 23 |
Year | 2025 |
Publisher | American Physical Society |
Place of Publication | United States |
ISSN | 2469-990X |
Digital Object Identifier (DOI) | https://doi.org/10.1103/PhysRevFluids.10.034801 |
Web Address (URL) | https://journals.aps.org/prfluids/abstract/10.1103/PhysRevFluids.10.034801 |
Abstract | We study a wave wake produced by a finite-size source uniformly moving on an ice plate overlying deep water. We describe the kinematic characteristics of source-generated flexural-gravity waves in terms of isophase patterns scaled by the minimum phase speed and show that the wave picture is determined by ad hoc defined Mach and Bond numbers. Then, we show that several bifurcations occur in the wave wake when the source speed increases. In particular, cusps appear in the wake patterns at certain speeds due to the merging at specific points of two or three wave characteristics (wave rays) which correspond to longitudinal (divergent), transverse, and fan waves. To describe the distribution of wave amplitudes in the wake accounting for the source size and shape, we use the reference solution approach. This approach agrees with the stationary phase method in the far-field zone and reproduces also specific wave dynamics at short and intermediate distances from the source. The effect of a source shape on the wave wake pattern is graphically illustrated for the elliptic source as the dependence on the dimensionless Bond number and the source length-to-beam ratio. The illustrations of the source speed and shape effects are given for low-speed regimes when wave patterns are conformed by single-ray solutions. Ways of the generalization of the suggested approach are outlined. |
Keywords | Ice plate; Kelvin angle; Mach number; moving source; ship waves; lexural-gravity waves |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 510301. Acoustics and acoustical devices; waves |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Skolkovo Institute of Science and Technology, Russia |
P.P. Shirshov Institute of Oceanology of the Russian Academy of Sciences, Russia | |
Nizhny Novgorod State Technical University, Russia |
https://research.usq.edu.au/item/zww7y/ship-waves-on-an-elastic-floating-ice-plate
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