COMPARISON OF NUMERICAL AND EMPIRICAL ESTIMATES OF WAVE CONDITIONS IN THE LEE OF A DETACHED BREAKWATER

Jim Churchill; David Taylor; Sean Garber

doi:10.9753/icce.v37.structures.63

No. 37 (2022), Coastal Structures

No. 37 (2022)

COMPARISON OF NUMERICAL AND EMPIRICAL ESTIMATES OF WAVE CONDITIONS IN THE LEE OF A DETACHED BREAKWATER

Coastal Structures

Published 2023-09-01

Jim Churchill
David Taylor
Sean Garber

Jim Churchill

David Taylor

Sean Garber

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How to Cite

COMPARISON OF NUMERICAL AND EMPIRICAL ESTIMATES OF WAVE CONDITIONS IN THE LEE OF A DETACHED BREAKWATER. (2023). Coastal Engineering Proceedings, 37, structures.63. https://doi.org/10.9753/icce.v37.structures.63

Abstract

This paper presents a comparison of numerical and empirical methods routinely applied by practitioners to examine wave penetration in the lee of a breakwater, using a case study of a breakwater which is planned for Entrance Point, Broome in the northwest of Australia. Wave conditions representative of ambient and extreme conditions were determined from measured data captured directly offshore of the site, and an extreme cyclone metocean study (Baird, 2020). For ambient and extreme tropical cyclone conditions, waves are typically short crested at a peak period of between 4 seconds to 8 seconds. To examine the effectiveness of the offshore breakwater, empirical methods (Goda, 2000), a phase-averaged model (SWAN) and two phase-resolving model systems– the 2D Boussinesq wave model (MIKE21BW) and 3D non-hydrostatic model (MIKE3-Wave FM) - were applied.

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References

Baird (2020). Broome Boating Facility Coastal Processes Report. 13111.101.R2.Rev1. 15 Dec 2020

Goda (2000). Random Seas and Design of Maritime Structures. Advanced Series on Ocean Engineering –Volume 15. World Scientific, Singapore.

This work is licensed under a Creative Commons Attribution 4.0 International License.

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COMPARISON OF NUMERICAL AND EMPIRICAL ESTIMATES OF WAVE CONDITIONS IN THE LEE OF A DETACHED BREAKWATER

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