Improved Lattice Boltzmann Model for Multi-component Diffusion Flow with Large Pressure Difference

摘要：

　　The pseudopotential lattice Boltzmann model has been widely used to solve multiphase and multi-component flow problems.However, original pseudopotential model cant be used in simulating diffusion flow with large pressure difference because of its limitation.In this paper,we incorporate the pseudopotential model with a new form of effective mass to solve this problem based on the relationship between pressure difference and effective mass.The improved model is verified through Laplaces law and binary immiscible poiseuille flow.By simulating pipeline binary diffusion flow and two-inlet binary cavity jet flow, we show that the improved model can achieve larger pressure difference than pseudopotential model with traditional effective mass forms.

关键词： lattice boltzman method multi-component diffusion flow large pressure difference

作者: Liu Fumin Wang Anlin Qiu Ruofan Jiang Tao

作者单位: College of Mechanical Engineering, Tongji University, Shanghai 201804, China

会议类型: 国际会议

会议名称: The 2015 International Conference on Advances in Construction Machinery and Vehicle Engineering(2015 工程机械与车辆工程新进展国际学术会议)

会议地点: 西安

会议语种:英文

页码: 339-344

在线出版日期: 2015-09-18（万方平台首次上网日期，不代表论文的发表时间）