Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering)
Online ISSN : 2185-4688
Annual Journal of Civil Engineering in the Ocean Vol.32
A PRECISE TSUNAMI NUMERICAL ANALYSIS OF LATTICE BOLTZMANN METHOD FOCUSING ON THE EXTERNAL FORCE TERM
Kenta SATOBruno ADRIANOShunichi KOSHIMURA
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2016 Volume 72 Issue 2 Pages I_145-I_150

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Abstract

 Lattice Boltzmann Method (LBM) is the one of the new and efficient Computational Fluid Dynamics (CFD) solvers. It has become an alternative powerful method compared with the other conventional CFD solvers. In the current study, we developed a robust tsunami simulation model by applying enhanced LBM for shallow water equations with treatments of the bed slope in the external force term in the Lattice Boltzmann equation.
 The proposed model is verified by the comparison with the conventional tsunami numerical model which is based on the Finite Difference Method (FDM). As a result, LBM results are in good agreement with the FDM results. The results imply that LBM based on shallow water equations has sufficient applicability of tsunami propagation and inundation.

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© 2016 Japan Society of Civil Engineers
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