Numerical analysis of wave transformation over low-crested impermeable breakwater

Zhong Peng, Qingping Zou

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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 International Offshore and Polar Engineering Conference, ISOPE 2008
EditorsJin S. Chung, Seok Won Hong, Simon Prinsenberg, Shuichi Nagata
Pages672-677
Number of pages6
Publication statusPublished - 2008
Event18th International Offshore and Polar Engineering Conference 2008 - Vancouver, BC, Canada
Duration: 6 Jul 200811 Jul 2008

Conference

Conference18th International Offshore and Polar Engineering Conference 2008
Abbreviated titleISOPE 2008
CountryCanada
CityVancouver, BC
Period6/07/0811/07/08

Keywords

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

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Ocean Engineering
  • Mechanical Engineering

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  • Cite this

    Peng, Z., & Zou, Q. (2008). Numerical analysis of wave transformation over low-crested impermeable breakwater. In J. S. Chung, S. W. Hong, S. Prinsenberg, & S. Nagata (Eds.), Proceedings of the 18th International Offshore and Polar Engineering Conference, ISOPE 2008 (pp. 672-677)