抄録
Immiscible lattice gas is one of the lattice gas automata methods to simulate phase separation phenomena.In the present paper, immiscible lattice gas model was applied to simulate the flow through complex obstacles simulating porous media in a debris bed.It was approved that the complex obstacles were successfully generated by the present method including the number of obstacles and grain size of obstacles by changing some control parameters.The simulating two-dimensional flow shows the flow concentration in specified flow channels.The simulating results of the flow through the porous media by the present method were compared with the Ergun's equation for the flow through porous media.It was clarified that the present results qualitatively agree with the Ergun's equation in the range of higher Reynolds number than 8.Furthermore, in order to check the applicability of the present method to the physical situation, the simulation results by the present method are compared with experimental results.The velocity distributions from the simulations shows good agreement with the experiment.It can be concluded that the present technique is useful to simulate flow through complex geometry like porous media.
