Mobile QR Code QR CODE : Journal of the Korean Society of Civil Engineers
Title Experiments for Wave Velocity Distribution in front of Composite Structure by Incident Wave Angles
Authors 이종인(Lee, Jong-In) ; 문강일(Moon, Gang Il) ; 임호석(Lim, Ho Seok)
DOI https://doi.org/10.12652/Ksce.2019.39.6.0759
Page pp.759-768
ISSN 10156348
Keywords 혼성식구조물;규칙파;불규칙파;수리모형실험;최대 수평유속 Composite structure;Monochromatic wave;Random wave;Hydraulic model experiment;Maximum horizontal wave velocity
Abstract The extended Tanimoto formula has been widely used to estimate the stability for the toe protection of the composite structure. However, the extended Tanimoto formula usually over-estimates armor weight when the incident waves approach the structure obliquely because the formula incident originally considered the normally incident wave cases. In this study, three-dimensional hydraulic model experiments were conducted to investigate the horizontal wave velocity under monochromatic and random wave conditions to investigate the prediction capability of the extended Tanimoto formula under the different incident wave angle conditions. The maximum horizontal wave velocity was measured near the toe for the normally incident wave condition. In the case of obliquely incident waves, the maximum horizontal wave velocity was measured under the stem wave generation condition. The results of the experiments showed a good agreement with the results by Takahashi et al.