Hybrid Eulerian and Lagrangian Simulation of Steep and Breaking Waves and Surface Fluxes in High Winds
Abstract
This research aims at developing a numerical capability using a Lagrangian Smoothed Particle Hydrodynamics (SPH) method and an Eulerian Level-Set Method (LSM) for the simulation of steep and breaking waves in high winds. The ultimate goal is to establish an advanced computational framework for the investigation of wind-wave breaking in air-sea interaction processes, including the airflow separation over steep and breaking waves, the wind wave momentum and energy transfer, the momentum and energy injection from breaking waves to the upper ocean, and the turbulence transport process. The scientific and technical objectives of this research are: (1) Develop an Eulerian and Lagrangian multi-fluids simulation capability by using the SPH and LSM with environmental input provided by coupled wind and wave simulations at far field; (2) Use the numerical method developed in (1) to simulate wind wave ocean interactions at small scales to elucidate flow structure; (3) Quantify and characterize wind wave momentum and energy transfer and the injection to the upper ocean by breaking waves; and (4) Simulate and identify key process in turbulence transport near steep and breaking waves.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 30, 2012
- Accession Number
- ADA590591
Entities
People
- Lian Shen
- Robert Anthony Dalrymple
Organizations
- Johns Hopkins University