Numerical simulation of dynamic shoreline changes behind a detached breakwater by using an equilibrium formula

Jung Lyul Lee, John Rong Chung Hsu

Research output: Chapter in Book/Conference paperConference paper

2 Citations (Scopus)

Abstract

Salient and tombolo are common features found in the lee of detached breakwaters. The empirical parabolic bay shape equation (PBSE) can be applied when their planform is fully developed, whereas numerical model is required to simulate the dynamic shoreline evolution prior to the planform reaching static equilibrium. This paper reports the excellent performance of PBSE through the comparison with labaratory results and the development of a numerical model for dynamic shoreline change that utilizes the concept of PBSE and equilibrium beach profile. Formulation proposed for sediment transport rate is theoretically compared with that in GENESIS. The governing equation for the combined shoreline response model is based on the one-line beach model, which includes shoreline changes owing to longshore and cross-shore sediment transport. Finally, numerical results reveal, by comparing with an experimental case in the laboratory, that the model is adequate to successively simulating the dynamic evolutions of the shoreline behind a detached breakwater.

Original languageEnglish
Title of host publicationASME Proceedings: Ocean Engineering
Place of PublicationNorway
PublisherASME International
PagesV07AT06A036
Number of pages9
Volume7A-2017
ISBN (Electronic)9780791857731
DOIs
Publication statusPublished - 2017
EventASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2017 - Trondheim, Norway
Duration: 25 Jun 201730 Jun 2017

Conference

ConferenceASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2017
CountryNorway
CityTrondheim
Period25/06/1730/06/17

Fingerprint

Breakwaters
Planforms
Sediment transport
Beaches
Numerical models
Computer simulation

Cite this

Lee, J. L., & Hsu, J. R. C. (2017). Numerical simulation of dynamic shoreline changes behind a detached breakwater by using an equilibrium formula. In ASME Proceedings: Ocean Engineering (Vol. 7A-2017, pp. V07AT06A036). [OMAE2017-62622] Norway: ASME International. https://doi.org/10.1115/OMAE2017-62622
Lee, Jung Lyul ; Hsu, John Rong Chung. / Numerical simulation of dynamic shoreline changes behind a detached breakwater by using an equilibrium formula. ASME Proceedings: Ocean Engineering. Vol. 7A-2017 Norway : ASME International, 2017. pp. V07AT06A036
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abstract = "Salient and tombolo are common features found in the lee of detached breakwaters. The empirical parabolic bay shape equation (PBSE) can be applied when their planform is fully developed, whereas numerical model is required to simulate the dynamic shoreline evolution prior to the planform reaching static equilibrium. This paper reports the excellent performance of PBSE through the comparison with labaratory results and the development of a numerical model for dynamic shoreline change that utilizes the concept of PBSE and equilibrium beach profile. Formulation proposed for sediment transport rate is theoretically compared with that in GENESIS. The governing equation for the combined shoreline response model is based on the one-line beach model, which includes shoreline changes owing to longshore and cross-shore sediment transport. Finally, numerical results reveal, by comparing with an experimental case in the laboratory, that the model is adequate to successively simulating the dynamic evolutions of the shoreline behind a detached breakwater.",
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Lee, JL & Hsu, JRC 2017, Numerical simulation of dynamic shoreline changes behind a detached breakwater by using an equilibrium formula. in ASME Proceedings: Ocean Engineering. vol. 7A-2017, OMAE2017-62622, ASME International, Norway, pp. V07AT06A036, ASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2017, Trondheim, Norway, 25/06/17. https://doi.org/10.1115/OMAE2017-62622

Numerical simulation of dynamic shoreline changes behind a detached breakwater by using an equilibrium formula. / Lee, Jung Lyul; Hsu, John Rong Chung.

ASME Proceedings: Ocean Engineering. Vol. 7A-2017 Norway : ASME International, 2017. p. V07AT06A036 OMAE2017-62622.

Research output: Chapter in Book/Conference paperConference paper

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AU - Hsu, John Rong Chung

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Lee JL, Hsu JRC. Numerical simulation of dynamic shoreline changes behind a detached breakwater by using an equilibrium formula. In ASME Proceedings: Ocean Engineering. Vol. 7A-2017. Norway: ASME International. 2017. p. V07AT06A036. OMAE2017-62622 https://doi.org/10.1115/OMAE2017-62622