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http://dx.doi.org/10.9765/KSCOE.2017.29.2.92

Numerical Simulation for Tsunami Force Acting on Onshore Bridge (for Solitary Wave)  

Lee, Kwang-Ho (Dept. of Energy Resources and Plant Eng., Catholic Kwandong University)
Woo, Kyung-Hwan (Dept. of Civil Eng., Korea Maritime and Ocean University)
Kim, Do-Sam (Dept. of Civil Eng., Korea Maritime and Ocean Univ.)
Jeong, Ik-Han (Dept. of Civil Eng., Korea Maritime and Ocean University)
Publication Information
Journal of Korean Society of Coastal and Ocean Engineers / v.29, no.2, 2017 , pp. 92-108 More about this Journal
Abstract
Present work shows a numerical method to analysis of interaction analysis between solitary wave and onshore bridge. Numerical simulation is carried out by TWOPM-3D (three-dimensional one-field model for immiscible two-phase flows), which is based on Navier-Stokes solver. To do this, the solitary wave is generated numerically in numerical wave channel, and numerical results and experimental results were compared and analyzed in order to verify the applicability of force acting on an onshore bridge. From this, we discussed precisely the characteristics of horizontal and vertical forces (uplift and downward forces) changes including water level and velocity changes due to the variation of solitary wave height, water depth, onshore bridge's location and type, and number of girder. Furthermore, It is revealed that the maximum horizontal and vertical forces acting on the girder bridge show different varying properties according to the number of girder, although each maximum force acting on the girder bridge is proportional to the increasement of incident solitary wave height, and the entrained air in the fluid flow affects the vertical force highly.
Keywords
onshore bridge; solitary wave; TWOPM-3D; horizontal force; vertical force;
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Times Cited By KSCI : 3  (Citation Analysis)
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