Numerical analysis of wave transformation over low-crested impermeable breakwater

  • Zhong Peng*
  • , Qingping Zou
  • *Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In this paper, a VOF-type model based on 2D Reynolds-Average-Navier-Stokes equations was applied to investigate irregular waves transformation over low-crested impermeable breakwater. The model considers wave reflection, transmission, breaking, and turbulence generation. Three different water depths were tested in order to examine the influence of the breakwater freeboard. The predicted surface elevations are compared with laboratory data set collected during DELOS project. Generated waves through an internal wavemaker are in a good agreement with measurements at the incident side. The measured surface elevation at the transmission side is reproduced well for submerged breakwater, but underestimated slightly by the numerical model for both zero freeboard case and emerged case. This numerical model reproduces the transformation of wave spectrum over the breakwater well. The predicted wave skewness and asymmetry at the transmission side are in a good agreement with measurements and empirical equations. The transformations of wave skewness and asymmetry over low-crested impermeable breakwater are also investigated.

Original languageEnglish
Title of host publicationProceedings of the 18th 2008 International Offshore and Polar Engineering Conference, ISOPE 2008
Pages672-677
Number of pages6
StatePublished - 2008
Externally publishedYes
Event18th 2008 International Offshore and Polar Engineering Conference, ISOPE 2008 - Vancouver, BC, Canada
Duration: 6 Jul 200811 Jul 2008

Publication series

NameProceedings of the International Offshore and Polar Engineering Conference
ISSN (Print)1098-6189
ISSN (Electronic)1555-1792

Conference

Conference18th 2008 International Offshore and Polar Engineering Conference, ISOPE 2008
Country/TerritoryCanada
CityVancouver, BC
Period6/07/0811/07/08

Keywords

  • Asymmetry
  • Low-crested breakwater
  • Rans
  • Skewness
  • Transformation
  • VOF

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