Transformation of wave skewness and asymmetry over low-crested breakwaters

Zhong Peng, Qingping Zou, Baoxing Wang, Dominic E. Reeve

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

Abstract

This paper presents the results of an investigation of wave asymmetries to understand the processes in the interactions between waves and low-crested breakwaters, (LCBs), based on an analysis of measurements collected in the DELOS project. Considering the effect of Ursell number and relative freeboards of LCBs on wave asymmetries, a set of empirical formulae was established, using least squares regression. We found that wave skewness retains a positive sign on both sides but wave asymmetry changes from negative value on the incident side to positive value on the transmission side. Although relationships between wave asymmetries and Ursell number for smooth breakwaters are similar to those for rubble mound breakwaters, the effect of relative free boards on the former is less significant than that on the latter.

Original languageEnglish
Title of host publicationCoastal Engineering 2008
Subtitle of host publicationProceedings of 31st Conference on Coastal Engineering, Hamburg, Germany, 2008
EditorsJane McKee Smith
PublisherWorld Scientific Publishing
Pages3522-3529
Number of pages8
ISBN (Electronic)9789814467568
ISBN (Print)9789814277365
DOIs
Publication statusPublished - 2008

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Ocean Engineering
  • Oceanography

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  • Cite this

    Peng, Z., Zou, Q., Wang, B., & Reeve, D. E. (2008). Transformation of wave skewness and asymmetry over low-crested breakwaters. In J. McKee Smith (Ed.), Coastal Engineering 2008: Proceedings of 31st Conference on Coastal Engineering, Hamburg, Germany, 2008 (pp. 3522-3529). World Scientific Publishing. https://doi.org/10.1142/9789814277426_0292