E131 格子ボルツマン法の二相流動への適用

概要

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Recently, numerical methods based on mesoscopic kinetic equations have been proposed as a alternative approach for modeling complicated flow phenomena. In particular, a lattice Boltzmann model has attracted attention in the application of two-phase fluid flows. This article concerns modeling of two-phase flow using two different lattice Boltzmann models, pseudo potential model and extended immiscible lattice gas type model, to liquid-gas two-phase flows. Each model recovers macroscopic equations for mass and momentum coupled with surface tension. Several simulations of two-phase flows including spontaneous phase separation, pool boiling and boiling flow in a vertical pipe demonstrate qualitative applicability of the LBM to prediction of complicated two-phase dynamics.
日本流体力学会の論文
2000-07-25