SPH modeling of solitary wave fissions over uneven bottoms
The propagation of solitary wave in shallow water is investigated by using the Smoothed Particle Hydrodynamics (SPH) method. The present SPH model, which solves the weakly compressible Navier–Stokes equations and implements the wave absorbing scheme of Xu (2010) at downstream boundary, is first ve...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
2013
|
| Online Access: | https://hdl.handle.net/10356/96725 http://hdl.handle.net/10220/13094 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Institution: | Nanyang Technological University |
| Language: | English |
| Summary: | The propagation of solitary wave in shallow water is investigated by using the Smoothed Particle Hydrodynamics
(SPH) method. The present SPH model, which solves the weakly compressible Navier–Stokes equations
and implements the wave absorbing scheme of Xu (2010) at downstream boundary, is first verified
by the case of incident solitary wave propagating on a constant depth. A series of numerical experiments of
solitary wave propagating over different bottom geometries are then conducted, which include the waves
over a mild shelf or underwater steps with varied amplitude-depth ratios. The fission processes of both
non-breaking and breaking solitary waves are discussed, numerical results of the free surface profiles and amplitude
of the solitons show reasonable agreements with that of RANS model, as well as available experimental
data. This paper demonstrates that the present method could reproduce the fission process with fairly good
accuracy. |
|---|