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Numerical Simulation of Wave Deformation due to a Submerged Structure with a Second-order VOF Method  

Ha, Tae-Min (한양대학교 공과대학 건설환경공학과)
Cho, Yong-Sik (한양대학교 공과대학 건설환경공학과)
Publication Information
Journal of the Korean Society of Hazard Mitigation / v.10, no.1, 2010 , pp. 111-117 More about this Journal
Abstract
A three-dimensional numerical model is employed to investigate wave deformation due to a submerged structure. The three-dimensional numerical model solves the spatially averaged Navier-Stokes equations for two-phase flows. The LES(large-eddy-simulation) approach is adopted to model the turbulence effect by using the Smagorinsky SGS(sub-grid scale) closure model. The two-step projection method is employed in the numerical solutions, aided by the Bi-CGSTAB technique to solve the pressure Poisson equation for the filtered pressure field. The second-order accurate VOF(volume-of-fluid) method is used to track the distorted and broken free surface. A simple linear wave is generated on a constant depth and compared with analytical solutions. The model is then applied to study wave deformation due to a submerged structure and the predicted results are compared with available laboratory measurements.
Keywords
Three-dimensional numerical model; Navier-Stokes equations; Wave-structure interaction; VOF method;
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Times Cited By KSCI : 2  (Citation Analysis)
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