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中文摘要：
采用格子-Boltzmann方法（LBM）直接从介观层次数值模拟了质子交换膜燃料电池（PEMFC）阴极催化层的传质和电化学反应过程。开发了二维程序；为了验证所编程序的正确性，建立了一个理想的二维规则模型，模拟得到的极化曲线和已有文献的极化曲线吻合较好。处理PEMFC阴极催化层的电镜扫描图得至4了二维实际计算模型，应用LBM模拟得到了二维的O2浓度和电势分布。表明LBM是一有效的分析PEMFC阴极催化层中传递和电化学反应过程的数值模拟方法。
英文摘要：
In this work, the Lattice Boltzmann Method （LBM） was applied to the simulation of mass transport and electrochemical reaction in a proton exchange membrane fuel cell （PEMFC） cathode catalyst layer. 2 D program was developed and then an idealized 2 D regular model was established to validate the program. Polarization curves from simulation show a good agreement with the results from literature. Then, LBM was applied directly on a 2 D practical microstructure established from SEM image of a PEMFC cathode catalyst layer. 2 D distribution of oxygen concentration and potential was obtained. From the results of this simulation the LBM can be considered as a promising numerical scheme to analyze mass transport and electrochemical reaction in PEMFC cathode catalyst layer.
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