Smooth Particle Hydrodynamics for Surf Zone Waves
Abstract
Breaking waves in both deep and shallow water create turbulent flows, with bubbles and spray. This project is directed towards developing Smoothed Particle Hydrodynamics codes for nearshore wave motions. The objectives of the project are to improve the SPH model for use in examining the physics of breaking waves, including the description of the wave-induced turbulence and sediment transport within the surf zone. Improvements to SPH have been necessary to improve the ability of the method to treat shallow water flows. To develop a computationally useful model of the full surf zone, SPH must be coupled to a more computationally efficient far-field model. The approach is based on improving various aspects of the open source SPH code, SPHysics; applying the code to more validation tests; and examining in some detail new aspects of the model by applying it to different situations. A new effort this year has been to begin implementing SPHysics on the GPU for drastic improvements in computational time. A hybrid model, that is, a coupled SPH particle model and conventional finite difference model, the Boussinesq model, FUNWAVE, provides the ability to model large areas.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 2009
- Accession Number
- ADA530932
Entities
People
- Robert Anthony Dalrymple
Organizations
- Johns Hopkins University