| Title |
Study on Modeling Procedure of Hydraulic Experiment of Coastal Structure Scour at Sea-Bed Using Fluid-structure Interaction |
| Authors |
강경원(Kang, Kyoung-Won) ; 김기동(Kim, Kee Dong) ; 한동석(Han, Tong-Seok) |
| DOI |
https://doi.org/10.12652/Ksce.2012.32.1A.049 |
| Keywords |
해안구조물;유체-구조 상호작용;세굴;조파실험 모델링 coastal structures;fluid-structure interaction;scour;hydraulic experiment modeling |
| Abstract |
Coastal structures, constructed for preventing coastal slope erosion, often causes the scour on the boundary between the coastal structure and the sea-bed, which might lead to collapse of coastal structures. To prevent the collapse, the usual upright block type coastal structures can be modified to other forms or systems of coastal structures. To validate the performance of the proposed systems, it is necessary to conduct high cost hydraulic experiments. If numerical modeling can be performed prior to the hydraulic experiments and the performance of the proposed systems is analyzed numerically in advance, the expenses can be reduced significantly by optimizing the number of cases for conducting the experiments. In this study, a fluid-structure interaction analysis procedure is proposed for modeling the hydraulic experiments of costal structures using the finite element package, LS-DYNA. As can be found in the usual hydraulic experiments, fluid velocities of potential scour locations are monitored and analyzed in detail for four types of coastal structures, block, step, trapezoid and rubble mound. |