 |
| Titel |
Boussinesq modeling of surface waves due to underwater landslides |
| VerfasserIn |
D. Dutykh, H. Kalisch |
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| ISSN |
1023-5809
|
| Digitales Dokument |
URL |
| Erschienen |
In: Nonlinear Processes in Geophysics ; 20, no. 3 ; Nr. 20, no. 3 (2013-05-03), S.267-285 |
| Datensatznummer |
250018966
|
| Publikation (Nr.) |
 copernicus.org/npg-20-267-2013.pdf |
|
|
|
|
|
| Zusammenfassung |
Consideration is given to the influence of an underwater landslide on waves
at the surface of a shallow body of fluid. The equations of motion that
govern the evolution of the barycenter of the landslide mass include various
dissipative effects due to bottom friction, internal energy dissipation, and
viscous drag. The surface waves are studied in the Boussinesq scaling, with
time-dependent bathymetry. A numerical model for the Boussinesq equations is
introduced that is able to handle time-dependent bottom topography, and the
equations of motion for the landslide and surface waves are solved
simultaneously.
The numerical solver for the Boussinesq equations can also be restricted to
implement a shallow-water solver, and the shallow-water and Boussinesq
configurations are compared. A particular bathymetry is chosen to illustrate
the general method, and it is found that the Boussinesq system predicts
larger wave run-up than the shallow-water theory in the example treated in
this paper. It is also found that the finite fluid domain has a significant
impact on the behavior of the wave run-up. |
| |
|
| Teil von |
|
|
|
|
|
|
|
|