Three-dimensional SPH modeling of a bar/rip channel system

Rozita Jalali Farahani*, Robert A. Dalrymple, Alexis Hérault, Giuseppe Bilotta

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

21 Scopus citations

Abstract

A Lagrangian numerical method called smoothed particle hydrodynamics (SPH) is used to analyze a simplified bar/rip channel system on a beach. Prior studies have shown that SPH models propagate water waves well, including breaking waves; here, it is shown that SPH also models the mean wave-induced nearshore circulation created by breaking waves. The model predictions are compared with the previous laboratory measurements and show good agreement, including the mean velocity profiles, mean surface elevation, and cross-shore velocity components over the rip channel. The alongshore variation of various components of radiation stress and the resulting alongshore force that acts as a feeder for the rip current are obtained from the numerical results.

Original languageEnglish (US)
Pages (from-to)82-99
Number of pages18
JournalJournal of Waterway, Port, Coastal and Ocean Engineering
Volume140
Issue number1
DOIs
StatePublished - Jan 2014

Keywords

  • Nearshore circulations
  • Radiation stress
  • Rip-current system
  • Smoothed particle hydrodynamics

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Water Science and Technology
  • Ocean Engineering

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