Application of Smoothed Particle Hydrodynamics (SPH) in Nearshore Mixing: A Comparison to Laboratory Data

Soroush Abolfathi, Jonathan Pearson

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Abstract

A weakly compressible smoothed particle hydrodynamics (WCSPH) method is used to simulate the nearshore flow hydrodynamics. The wave induced dispersion and diffusion are determined for monochromatic waves with significant wave height of 0.12 m and the wave period of 1.2 sec (Sop=5%) based on WCSPH wave dynamics. The hydrodynamics of WCSPH model are compared to the laboratory results obtained from series of LDA measurements. The overall mixing coefficients across the nearshore are determined from WCSPH hydrodynamics. The mixing coefficients obtained are compared with the values determined from a series of fluorometric studies performed in a large-scale facility in DHI, Denmark. The results show that the wave profiles are in good agreement with the experimental data. The WCSPH model is proven to be well capable of estimating the dispersion across the nearshore.

Original languageEnglish
Number of pages12
JournalCoastal Engineering Proceedings
Volume35
DOIs
Publication statusPublished - 2017
Event35th Conference on Coastal Engineering - Antalya, Turkey
Duration: 17 Nov 201620 Nov 2016

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Publisher Statement: This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

Keywords

  • WCSPH
  • Dispersion
  • Diffusion
  • nearshore mixing
  • LDA

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