J Coast Disaster Prev > Volume 5(1); 2018 > Article
Journal of Coastal Disaster Prevention 2018;5(1):1-7.
DOI: https://doi.org/10.20481/kscdp.2018.5.1    Published online January 30, 2018.
Numerical Analysis of Free Surface Movement around the Artificial Reef of Overflow Type
Young-Seop Shin, Chang-Bae Hong, Seong-Dae Lee
월류식 인공리프 주위의 수면변동 수치해석
신영섭, 홍창배, 이성대
 
Abstract
In this study, we developed the program where the flows around the artificial reef of overflow type can be analyzed numerically. The unstructured grid system is used to cover the various geometries and the level set method is applied to treat the movement of the free surface. To obtain more accurate values of level, the informations of the cell connection in the domain are used to deliver the physical quantities of the free surface to neighbor cells. To verify numerical schemes, the flows in the wave tank of the piston type are simulated and compared with the analytic solutions and our numerical schemes are shown to be valid. The flows around the artificial reef are simulated as varying period and the effectiveness in the aspect of the wave breaking and the construction costs are confirmed.
Key Words: Artificial reef; Unstructured grid system; Free surface; Level set method; Overflow type
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