格子ガスオートマトン法による複雑流れの数値解析(<小特集>流れの複合問題)

概要

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Lattice gas automata, in which a flow field is expressed by using many particles, have been recently utilized for simulating complex behavior of fluid motion such as multi-phase flows. The present paper reviews some typical models of the lattice gas automata. After brief introduction of the basic concepts and properties of these models, two typical numerical simulation results are shown. The first example is the simulation of two-component phase separation demonstrated by ILG model. Two components separated and formed complex interface geometry as time marching. The second example is the simulation of flows through complex geometry. ILG model was applied to simulate the flow through complex obstacles. The complex obstacles were successfully generated by the present method and the two-dimensional flow characteristics can be calculated including flow concentration in the specified flow channels. Through this brief review, it is concluded that the lattice gas automata method may serve powerful tools to simulate complex flows.
日本シミュレーション学会の論文
1998-09-15