Mach reflection and expansion of two-dimensional dispersive shock waves
Fuente:
arXiv
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| Autori principali: | , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| _version_ | 1866915010074116096 |
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| author | Biondini, Gino Bivolcic, Alexander Hoefer, Mark A. |
| author_facet | Biondini, Gino Bivolcic, Alexander Hoefer, Mark A. |
| contents | The oblique collisions and dynamical interference patterns of two-dimensional dispersive shock waves are studied numerically and analytically via the temporal dynamics induced by wedge-shaped initial conditions for the Kadomtsev-Petviashvili II equation. Various asymptotic wave patterns are identified, classified and characterized in terms of the incidence angle and the amplitude of the initial step, which can give rise to either subcritical or supercritical configurations, including the generalization to dispersive shock waves of the Mach reflection and expansion of viscous shocks and line solitons. An eightfold amplification of the amplitude of an obliquely incident flow upon a wall at the critical angle is demonstrated. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2411_05707 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Mach reflection and expansion of two-dimensional dispersive shock waves Biondini, Gino Bivolcic, Alexander Hoefer, Mark A. Pattern Formation and Solitons Exactly Solvable and Integrable Systems The oblique collisions and dynamical interference patterns of two-dimensional dispersive shock waves are studied numerically and analytically via the temporal dynamics induced by wedge-shaped initial conditions for the Kadomtsev-Petviashvili II equation. Various asymptotic wave patterns are identified, classified and characterized in terms of the incidence angle and the amplitude of the initial step, which can give rise to either subcritical or supercritical configurations, including the generalization to dispersive shock waves of the Mach reflection and expansion of viscous shocks and line solitons. An eightfold amplification of the amplitude of an obliquely incident flow upon a wall at the critical angle is demonstrated. |
| title | Mach reflection and expansion of two-dimensional dispersive shock waves |
| topic | Pattern Formation and Solitons Exactly Solvable and Integrable Systems |
| url | https://arxiv.org/abs/2411.05707 |