Journal of Ocean Engineering and Technology (한국해양공학회지)

Korean Society of Ocean Engineers (한국해양공학회)
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Analysis of Shoreline Response due to Wave Energy Incidence Using Equilibrium Beach Profile Concept

평형해빈단면 개념을 이용하여 파랑 에너지 유입에 따른 해안선 변동 해석

  • Kim, Tae-Kon (School of Civil, Architecture and Environmental System Engineering, Sungkyunkwan University) ;
  • Lee, Jung-Lyul (School of Water Resources Engineering, Sungkyunkwan University)
  • 김태곤 (성균관대학교 건설환경시스템공학과) ;
  • 이정렬 (성균관대학교 수자원대학원)
  • Received : 2018.03.27
  • Accepted : 2018.04.23
  • Published : 2018.04.30
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Abstract

Dean's equilibrium beach profile formula was used to investigate the correlation between the static shoreline position and the incident wave energy. The effect of the longshore sediment transport was neglected, and the results showed the reasonable agreement compared with the field observations of Yates et al.(2009), which were conducted for almost 5 years on southern California beaches, USA. The shoreline response varies with the scale factor of Dean's equilibrium beach profile. This implies that the shoreline response could be simply estimated using the sampled grain size without laborious long-term field work. Therefore, the present study results are expected to be practically used for the layout design of submerged or exposed detached breakwaters although the further work is required for performance verification. In addition, after laborous mathematical reviews, the linear relation between incident energy and shoreline response, which was obtained from Yates's field study, yielded a clear mathematical equation showing how the beach slope is related to the grain size.

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References

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