SOFC多孔阳极内微尺度流动的Lattice-Boltzmann模拟  

Lattice-Boltzmann simulation of micro-scale flow in porous anode of SOFC

作　　者：谢龙[1] 王玉璋[1] 于建国[1] 

机构地区：[1]上海交通大学动力机械与工程教育部重点实验室,上海200240

出　　处：《电源技术》2013年第2期209-213,共5页Chinese Journal of Power Sources

基　　金：教育部留学回国人员科研启动基金;上海市科委科技攻关计划(08DZ1200102);国家重点基础研究发展规划基金项目(973计划)(2007CB210102)

摘　　要：为了模拟阳极支撑固体氧化物燃料电池多孔阳极内的微尺度流动,利用Lattice-Boltzmann方法建立了多组分气体流动模型,结合多孔介质的数值构造方法,验证了复杂多孔介质内微尺度流动模型的有效性,研究了多孔阳极微结构和燃料组分对质量传递和浓差极化的影响。计算结果表明:Lattice-Boltzmann方法适用于多孔电极内的微尺度流动模拟,阳极浓差极化与燃料组分、电流密度以及阳极微结构相关。In order to simulate the micro-scale flow in porous anode of anode-supported solid oxide fuel cell, a multi-component gas flow model was built through Lattice-Boltzmann method and the porous media was reconstructed by numerical technique, Based on the validation of micro-scale flow model of complex porous media, the effect of microstructure and fuel component on mass transport and concentration polarization was analyzed. Conclusions are drawn out： Lattice-Boltzmann method is competent for the simulation of micro-scale flow in porous electrode, and the concentration polarization of SOFC anode is highly related to fuel component, current density and anode microstructure,

关 键 词：固体氧化物燃料电池 格子-波尔兹曼方法 微尺度流动 浓差极化 

分 类 号：TM911.4[电气工程—电力电子与电力传动]