Analysis of Wave Transmission Characteristics on the TTP Submerged Breakwater using a Parabolic-Type Linear Wave Deformation Model
Owing to the advantages of assuring the best views and seawater exchange, submerged breakwaters have been widely installed along the eastern coast of Korea in recent years. It significantly contributes to promoting the advancement of shorelines by partially inhibiting incident wave energy. Observati...
Main Authors: | , , |
---|---|
Format: | Article |
Language: | English |
Published: |
The Korean Society of Ocean Engineers
2021-02-01
|
Series: | 한국해양공학회지 |
Subjects: | |
Online Access: | https://www.joet.org/journal/view.php?number=3003 |
id |
doaj-80bba0e159eb4da485d0c779dc1116c0 |
---|---|
record_format |
Article |
spelling |
doaj-80bba0e159eb4da485d0c779dc1116c02021-02-28T02:51:07ZengThe Korean Society of Ocean Engineers한국해양공학회지1225-07672287-67152021-02-01351829010.26748/KSOE.2020.066Analysis of Wave Transmission Characteristics on the TTP Submerged Breakwater using a Parabolic-Type Linear Wave Deformation ModelJin-Hwan Jeong0https://orcid.org/0000-0001-9736-1168Jin-Hoon Kim1https://orcid.org/0000-0001-6061-5267Jung-Lyul Lee2https://orcid.org/0000-0001-9410-9725Sungkyunkwan UniversityKangwon National UniversitySungkyunkwan UniversityOwing to the advantages of assuring the best views and seawater exchange, submerged breakwaters have been widely installed along the eastern coast of Korea in recent years. It significantly contributes to promoting the advancement of shorelines by partially inhibiting incident wave energy. Observations were carried out by a pressure-type wave gauge in the Bongpo Beach to evaluate the coefficients of wave transmission via a submerged breakwater, and the results obtained were compared with those of existing conventional equations on the transmission coefficient derived from hydraulic experiments. After reviewing the existing equations, we proposed a transmission coefficient equation in terms of an error function. Although it exhibited robust relationships with the crest height and breaking coefficient, deviations from the observed data were evident and considered to be triggered by the difference in the incident wave climate. Therefore, in this study, we conducted a numerical experiment to verify the influence of wave period on the coefficients of wave transmission, in which we adopted a parabolic-type mild-slope equation model. Consequently, the deviation from calculated results appears to practically cover all deviation range in the observed data. The wave period and direction of the incident wave increased, the transmission coefficient decreased, and the wave direction was determined to demonstrate a relatively significant influence on the transmission coefficient. It was inferred that this numerical study is expected to be used practically in evaluating the design achievement of the submerged breakwater, which is adopted as a countermeasure to coastal beach erosion.https://www.joet.org/journal/view.php?number=3003submerged breakwaterwave transmission coefficienterror functionfield observationwave deformation model |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Jin-Hwan Jeong Jin-Hoon Kim Jung-Lyul Lee |
spellingShingle |
Jin-Hwan Jeong Jin-Hoon Kim Jung-Lyul Lee Analysis of Wave Transmission Characteristics on the TTP Submerged Breakwater using a Parabolic-Type Linear Wave Deformation Model 한국해양공학회지 submerged breakwater wave transmission coefficient error function field observation wave deformation model |
author_facet |
Jin-Hwan Jeong Jin-Hoon Kim Jung-Lyul Lee |
author_sort |
Jin-Hwan Jeong |
title |
Analysis of Wave Transmission Characteristics on the TTP Submerged Breakwater using a Parabolic-Type Linear Wave Deformation Model |
title_short |
Analysis of Wave Transmission Characteristics on the TTP Submerged Breakwater using a Parabolic-Type Linear Wave Deformation Model |
title_full |
Analysis of Wave Transmission Characteristics on the TTP Submerged Breakwater using a Parabolic-Type Linear Wave Deformation Model |
title_fullStr |
Analysis of Wave Transmission Characteristics on the TTP Submerged Breakwater using a Parabolic-Type Linear Wave Deformation Model |
title_full_unstemmed |
Analysis of Wave Transmission Characteristics on the TTP Submerged Breakwater using a Parabolic-Type Linear Wave Deformation Model |
title_sort |
analysis of wave transmission characteristics on the ttp submerged breakwater using a parabolic-type linear wave deformation model |
publisher |
The Korean Society of Ocean Engineers |
series |
한국해양공학회지 |
issn |
1225-0767 2287-6715 |
publishDate |
2021-02-01 |
description |
Owing to the advantages of assuring the best views and seawater exchange, submerged breakwaters have been widely installed along the eastern coast of Korea in recent years. It significantly contributes to promoting the advancement of shorelines by partially inhibiting incident wave energy. Observations were carried out by a pressure-type wave gauge in the Bongpo Beach to evaluate the coefficients of wave transmission via a submerged breakwater, and the results obtained were compared with those of existing conventional equations on the transmission coefficient derived from hydraulic experiments. After reviewing the existing equations, we proposed a transmission coefficient equation in terms of an error function. Although it exhibited robust relationships with the crest height and breaking coefficient, deviations from the observed data were evident and considered to be triggered by the difference in the incident wave climate. Therefore, in this study, we conducted a numerical experiment to verify the influence of wave period on the coefficients of wave transmission, in which we adopted a parabolic-type mild-slope equation model. Consequently, the deviation from calculated results appears to practically cover all deviation range in the observed data. The wave period and direction of the incident wave increased, the transmission coefficient decreased, and the wave direction was determined to demonstrate a relatively significant influence on the transmission coefficient. It was inferred that this numerical study is expected to be used practically in evaluating the design achievement of the submerged breakwater, which is adopted as a countermeasure to coastal beach erosion. |
topic |
submerged breakwater wave transmission coefficient error function field observation wave deformation model |
url |
https://www.joet.org/journal/view.php?number=3003 |
work_keys_str_mv |
AT jinhwanjeong analysisofwavetransmissioncharacteristicsonthettpsubmergedbreakwaterusingaparabolictypelinearwavedeformationmodel AT jinhoonkim analysisofwavetransmissioncharacteristicsonthettpsubmergedbreakwaterusingaparabolictypelinearwavedeformationmodel AT junglyullee analysisofwavetransmissioncharacteristicsonthettpsubmergedbreakwaterusingaparabolictypelinearwavedeformationmodel |
_version_ |
1724247607207788544 |