KSCE Journal of Civil and Environmental Engineering Research (대한토목학회논문집)

Korean Society of Civil Engeneers (대한토목학회)
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Numerical Simulation of the Water Column Collapse using SPH Method

SPH법을 이용한 물기둥 붕괴의 수치모의

Kim, Nam-Hyeong;Ko, Haeng-Sik
김남형;고행식

  • Published : 20070500

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Abstract

Smoothed Particle Hydrodynamics (SPH) method is a meshless Lagrangian method using the particle, which is different from previous methods using the mesh. The Navier-Stokes equations for the incompressible viscous flow is applied. In this study, the numerical analysis of two-dimensional water column collapse by SPH method is carried out, and the result is compared with Martin and Moyce's experimental data and the result of MPS and SMAC method. And a good result is obtained. The phenomenon of water column collapse by using the particle and velocity vector is also visualized, and the sensitive analysis on the artificial viscosity a-term and particle number is performed. Finally it is shown that this method could be applied to the breaking phenomenon of hydraulic structures such as dam break.

Keywords

References

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