한국전산유체공학회:학술대회논문집
- 2011.05a
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- Pages.54-57
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- 2011
COMPUTATIONAL STUDY ON TWO DIMENSIONAL DAM BREAKING SIMULATION USING LATTICE BOLTZMANN METHOD
LBM을 이용한 Dam Breaking 수치해석 연구
- Jung, Rho-Taek (NAOE, University of Ulsan) ;
- Hasan, Md. Kamrul (NAOE, University of Ulsan)
- Published : 2011.05.26
Abstract
In this paper we present an algorithm about how to simulate two dimensional dam breaking with lattice Boltzmann method (LBM). LBM considers a typical volume element of fluid to be composed of a collection of particles that represented by a particle velocity distribution function for each fluid component at each grid point. We use the modified Lattice Boltzmann Method for incompressible fluid. This paper will represent detailed information on single phase flow which considers only the water instead of both air and water. Interface treatment and conservation of mass are the most important things in simulating free surface where the Interface is treated by mass exchange with the water region. We consider the surface tension on the interface and also bounce back boundary condition for the treatment of solid obstacles. We will compare the results of the simulation with some methods and experimental results.
Keywords
- Dam breaking;
- free surface;
- Lattice Boltzmann Method;
- Surface tension;
- Bounce back boundary condition