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| Titel |
Head-on collision of two solitary waves and residual falling jet formation |
| VerfasserIn |
J. Chambarel, C. Kharif, J. Touboul |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1023-5809
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| Digitales Dokument |
URL |
| Erschienen |
In: Nonlinear Processes in Geophysics ; 16, no. 1 ; Nr. 16, no. 1 (2009-02-17), S.111-122 |
| Datensatznummer |
250013092
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| Publikation (Nr.) |
 copernicus.org/npg-16-111-2009.pdf |
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| Zusammenfassung |
| The head-on collision of two equal and two unequal steep solitary
waves is investigated numerically. The former case is equivalent to
the reflection of one solitary wave by a vertical wall when
viscosity is neglected. We have performed a
series of numerical simulations based on a Boundary Integral
Equation Method (BIEM) on finite depth to investigate during the
collision the maximum runup, phase shift, wall residence time and
acceleration field for arbitrary values of the non-linearity
parameter a/h, where a is the amplitude of initial
solitary waves and h the constant water depth. The initial
solitary waves are calculated numerically from the fully nonlinear
equations. The present work extends previous results on the runup
and wall residence time calculation to the collision of very steep
counter propagating solitary waves. Furthermore, a new phenomenon
corresponding to the occurrence of a residual jet is found for wave
amplitudes larger than a threshold value. |
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