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Journal article 1143 views

Modelling beach-structure interaction using a Heaviside technique: application and validation.

Antonios Valsamidis, Yuzhi Cai Orcid Logo, Dominic Reeve

Journal of Coastal Research, Special Issue, Issue: 65, Pages: 410 - 415

Swansea University Author: Yuzhi Cai Orcid Logo

Abstract

In this study, an analytical solution, based on a Heaviside technique, is developed to model the shoreline evolution in the vicinity of a groyne due to a random sequence of waves. The beach at Borth, Wales, UK was used as a case-study. A wave time-series covering a time period of about 12 years, was...

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Published in: Journal of Coastal Research, Special Issue
Published: 2013
URI: https://cronfa.swan.ac.uk/Record/cronfa16450
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first_indexed 2013-12-04T16:33:33Z
last_indexed 2018-02-09T04:49:07Z
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spelling 2013-12-04T15:24:55.0506429 v2 16450 2013-12-04 Modelling beach-structure interaction using a Heaviside technique: application and validation. eff7b8626ab4cc6428eef52516fda7d6 0000-0003-3509-9787 Yuzhi Cai Yuzhi Cai true false 2013-12-04 BAF In this study, an analytical solution, based on a Heaviside technique, is developed to model the shoreline evolution in the vicinity of a groyne due to a random sequence of waves. The beach at Borth, Wales, UK was used as a case-study. A wave time-series covering a time period of about 12 years, was used to test the performance of a recently constructed coastal defence scheme. Transformations of the wave time-series from offshore to nearshore were performed using a semi-empirical procedure. Three different wave breaking formulae were independently applied to the wave model, and their effects to the consequent shoreline evolution were investigated. In addition, three different longshore transport formulae were compared. These were the CERC, the Kamphuis and the Bayram formulae. Results showed that the CERC formula predicted a significantly greater amount of sediment transport and hence erosion on the downdrift side of the groyne while the models based on Kamphuis and the Bayram formulae gave comparable results. All the results exhibited a strong sensitivity to the temporal resolution of the forcing. Finally, some sensitivity to the treatment of wave breaking was found. Journal Article Journal of Coastal Research, Special Issue 65 410 415 shoreline evolution, analytical model, groyne, waves, jetty, longshore sediment transport rate, wave breaking conditions, erosion, accretion . 30 6 2013 2013-06-30 COLLEGE NANME Accounting and Finance COLLEGE CODE BAF Swansea University 2013-12-04T15:24:55.0506429 2013-12-04T13:24:21.3812791 Faculty of Humanities and Social Sciences School of Management - Accounting and Finance Antonios Valsamidis 1 Yuzhi Cai 0000-0003-3509-9787 2 Dominic Reeve 3
title Modelling beach-structure interaction using a Heaviside technique: application and validation.
spellingShingle Modelling beach-structure interaction using a Heaviside technique: application and validation.
Yuzhi Cai
title_short Modelling beach-structure interaction using a Heaviside technique: application and validation.
title_full Modelling beach-structure interaction using a Heaviside technique: application and validation.
title_fullStr Modelling beach-structure interaction using a Heaviside technique: application and validation.
title_full_unstemmed Modelling beach-structure interaction using a Heaviside technique: application and validation.
title_sort Modelling beach-structure interaction using a Heaviside technique: application and validation.
author_id_str_mv eff7b8626ab4cc6428eef52516fda7d6
author_id_fullname_str_mv eff7b8626ab4cc6428eef52516fda7d6_***_Yuzhi Cai
author Yuzhi Cai
author2 Antonios Valsamidis
Yuzhi Cai
Dominic Reeve
format Journal article
container_title Journal of Coastal Research, Special Issue
container_issue 65
container_start_page 410
publishDate 2013
institution Swansea University
college_str Faculty of Humanities and Social Sciences
hierarchytype
hierarchy_top_id facultyofhumanitiesandsocialsciences
hierarchy_top_title Faculty of Humanities and Social Sciences
hierarchy_parent_id facultyofhumanitiesandsocialsciences
hierarchy_parent_title Faculty of Humanities and Social Sciences
department_str School of Management - Accounting and Finance{{{_:::_}}}Faculty of Humanities and Social Sciences{{{_:::_}}}School of Management - Accounting and Finance
document_store_str 0
active_str 0
description In this study, an analytical solution, based on a Heaviside technique, is developed to model the shoreline evolution in the vicinity of a groyne due to a random sequence of waves. The beach at Borth, Wales, UK was used as a case-study. A wave time-series covering a time period of about 12 years, was used to test the performance of a recently constructed coastal defence scheme. Transformations of the wave time-series from offshore to nearshore were performed using a semi-empirical procedure. Three different wave breaking formulae were independently applied to the wave model, and their effects to the consequent shoreline evolution were investigated. In addition, three different longshore transport formulae were compared. These were the CERC, the Kamphuis and the Bayram formulae. Results showed that the CERC formula predicted a significantly greater amount of sediment transport and hence erosion on the downdrift side of the groyne while the models based on Kamphuis and the Bayram formulae gave comparable results. All the results exhibited a strong sensitivity to the temporal resolution of the forcing. Finally, some sensitivity to the treatment of wave breaking was found.
published_date 2013-06-30T03:18:47Z
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score 11.01297

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