摘要
基于伪势模型将有效密度和势函数结合计算粒子间相互作用力,提出一种改进描述气液相变的格子Boltzmann模型.对不同状态方程控制的单组份流体相变过程进行模拟发现,与单纯由有效密度或势函数计算粒子间相互作用力的方法相比,该模型的结果与Maxwell构建更吻合,且最大伪速度更小,扩大了温度的计算范围,提高了模型的稳定性.基于Laplace定律对界面现象模拟结果进行讨论,模拟结果与Laplace定律吻合.
A single-component multiphase lattice Boltzmann model which combines effective mass function with special potential in calculating interparticle potential based on Shan-Chen model is proposed.Accuracy of the model is verified by simulating single-component phase change process.Different equations of state are explored in the model.It shows that the model has many advantages： It tallies with the Maxwell construction more precisely;The maximum magnitude of spurious current is smaller and the range of simulation temperature is greater.Laplace tests is carried out and simulated results are in conformity.
出处
《计算物理》
EI
CSCD
北大核心
2012年第6期828-836,共9页
Chinese Journal of Computational Physics
基金
国家自然科学基金(51076172)资助项目
