Dissipative hydrodynamic interactions via lattice‐gas cellular automata
Dissipative hydrodynamic interactions via lattice‐gas cellular automata
复制标题
通过晶格气体元胞自动机的耗散流体动力学相互作用
DOI：
10.1063/1.857667
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发表时间：
1990
期刊：
影响因子：
--
通讯作者：
D. Frenkel
中科院分区：
文献类型：
--
作者：
A. Ladd;D. Frenkel
三维格子气模型已被用于确定球形颗粒之间的耗散流体动力学相互作用。当粒子靠得很近时，格子气模拟的准确性比蠕动流方程的典型积分方程解要高上级。此外，计算需求与系统大小成线性比例，而不是二次或三次。已经实现了一组新的微规则，其模拟了固体-流体表面处的恒定速度、无滑移边界条件。各种阻力系数的数值结果报告。
A three‐dimensional lattice‐gas model has been used to determine the dissipative hydrodynamic interactions between spherical particles. When the particles are close together the accuracy of the lattice‐gas simulations is superior to typical integral‐equation solutions of the creeping‐flow equations. Moreover, the computational requirements scale linearly with system size, instead of quadratically or cubically. A new set of microrules have been implemented, which simulate a constant‐velocity, no‐slip boundary condition at the solid–fluid surfaces. Numerical results for various drag coefficients are reported.