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http://dx.doi.org/10.6112/kscfe.2014.19.2.079

SIMULATION OF FREE SURFACE FLOW OVER TRAPEZOIDAL OBSTACLE WITH LATTICE BOLTZMANN METHOD  

Korkmaz, Emrah (School of Naval Architecture and Ocean Engineering, University of Ulsan)
Jung, Rho-Taek (School of Naval Architecture and Ocean Engineering, University of Ulsan)
Publication Information
Journal of computational fluids engineering / v.19, no.2, 2014 , pp. 79-85 More about this Journal
Abstract
An air-water free surface flow simulation by using the Lattice Boltzmann Method(LBM) has not been studied a lot compared with the done by the Navier-Stoke equation. This paper shows the LBM is as one of the application tools for the free surface movement over an obstacle. The Mezo scaled application tool has been developed with two dimensional and nine discretized velocity direction using conventional lattice Bhatnagar-Gross-Krook model. Boundary conditions of a halfway-based for solid wall and a kinematic-based for interface are adopted. A validation case with a trapezoidal shape bump to make a comparison between freesurface movements from computational results and experimental ones was described with grid size dependency.
Keywords
Lattice Boltzmann Method; Algorithm of Inclined wall; Dam break;
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