G0110103 自由エネルギーに基づいた二相系大密度比LBMにおける自由流出境界条件の影響(計算力学部門一般セッション)

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タイトル別名
  • G0110103 Effect of Free-out Outlet Boundary Condition on the Free Energy Based Two-Phase Flow LBM with Large Density Ratio

説明

The effect of 0-velocity inlet and free-out outlet boundary condition used in the free energy based LBM with large density ratio was investigated in this paper. A static water droplet in the quiescent gas in a gas channel was simulated with both the 0-velocity inlet and free-out outlet boundary condition and the periodic boundary conditions along Z direction of the computational domain. The total mass loss was observed while using the 0-velocity and free-out outlet boundary condition. By comparing with results from the periodic boundary condition, it was proved that both the velocity inlet and the free-out outlet can be the sources of mass un-conservation; the difference of the simulation results between the two types of boundary conditions are small, both boundary conditions can be used in the target simulation.

収録刊行物

  • 年次大会

    年次大会 2014 (0), _G0110103--_G0110103-, 2014

    一般社団法人 日本機械学会

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