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http://dx.doi.org/10.9765/KSCOE.2017.29.1.46

Numerical Simulation of Tsunami Force Acting on Onshore Bridge (for Tsunami Bore)  

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.1, 2017 , pp. 46-61 More about this Journal
Abstract
In the present work, the interaction analysis between tsunami bore and onshore bridge is approached by a numerical method, where the tsunami bore is generated by difference of upstream side and downstream side water levels. Numerical simulation in this paper was carried out by TWOPM-3D(three-dimensional one-field model for immiscible two-phase flows), which is based on Navier-Stokes solver. In order to verify the applicability of force acting on an onshore bridge, numerical results and experimental results were compared and analyzed. From this, we discussed the characteristics of horizontal force and vertical force(uplift force and downward force) changes including water level and velocity change due to the tsunami bore strength, water depth, onshore bridge form and number of girder. Furthermore, It was revealed that the entrained air in the fluid flow highly affected the vertical force.
Keywords
onshore bridge; tsunami bore; TWOPM-3D; horizontal force; vertical force;
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Times Cited By KSCI : 3  (Citation Analysis)
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