Modeling Water Waves with Smoothed Particle Hydrodynamics

Abstract

Long-term goals: Smoothed Particle Hydrodynamics (SPH) is a meshless numerical method that is being developed for the study of nearshore waves and other Navy needs. The Lagrangian nature of SPH allows the modeling of wave breaking, surf zones, ship waves, and wave-structure interaction, where the free surface becomes convoluted or splash occurs. Including these phenomena in a numerical model that is robust enough for Navy use: GPUSPH. Objectives: To improve the ability of the meshfree Lagrangian numerical method Smoothed Particle Hydrodynamics (SPH) to be a useful hydrodynamics model for breaking waves and the nearshore zone, particularly for case where spray and splash are important. To utilize the massively parallel graphics processing units on computers to develop the GPU-accelerated model GPUSPH to solve a number of problems relevant to the U.S. Navy. The science objective is to be able to accurately model the complex flows associated with breaking water waves, including instantaneous motions as well as (time-averaged) wave-induced flows, such as undertow, longshore currents, and rip currents.

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Document Details

Document Type
Technical Report
Publication Date
Sep 30, 2013
Accession Number
ADA597658

Entities

People

  • Robert Anthony Dalrymple

Organizations

  • Johns Hopkins University

Tags

Communities of Interest

  • Energy and Power Technologies
  • Ground and Sea Platforms
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Boundary Layer
  • Civil Engineering
  • Demographic Cohorts
  • Engineering
  • Flow Fields
  • Graphics
  • Graphics Processing Unit
  • Hydrodynamics
  • Measurement
  • Particles
  • Regions
  • Shallow Water
  • Simulations
  • Solitons
  • Three Dimensional
  • Water Waves
  • Waves

Fields of Study

  • Physics

Readers

  • Coastal Oceanography
  • Computational Fluid Dynamics (CFD)