Coupling between finite volume method and lattice Boltzmann method and its application to fluid flow and mass transport in proton exchange membrane fuel cell
- 作者：Li Chen ; Huibao Luan ; Yongliang Feng ; Chenxi Song ; Ya-Ling He ; Wen-Quan Tao ; wqtao@mail.xjtu.edu.cn
- 关键词：Finite volume method ; Lattice Boltzmann method ; Coupling ; Mass transport ; Proton exchange membrane fuel cell
- 刊名：International Journal of Heat and Mass Transfer
- 出版年：2012
- 期刊代码：42_00179310
- 类别：ce
- 出版时间：June, 2012
- 卷：55
- 期：13-14
- 页码：3834-3848
- 文件大小：3064 K
摘要
In this paper, a concentration distribution function reconstruction operator is derived to lift macroscopic parameter concentration to concentration distribution function in lattice Boltzmann method (LBM). Combined with a density-velocity distribution function reconstruction operator previously derived by the author鈥檚 group, the coupled finite volume method and LBM scheme (CFVLBM), previously proposed by the authors鈥?group is extended to simulate both fluid flow and mass transport processes. The accuracy of concentration distribution function reconstruction operator and the feasibility of CFVLBM are validated by two numerical examples, diffusion-convection-reaction problem and natural convection in a square cavity induced by concentration gradient. Finally, the CFVLBM is further adopted to simulate fluid flow and mass transport in the gas channel (GC) and gas diffusion layer (GDL) of a proton exchange membrane fuel cell (PEMFC). It is found that the CFVLBM can capture the pore-scale information of fluid flow and species transport in porous GDL and can save the computational resources.