Flow field plays a vital role in proton exchange membrane (PEM) fuel cell where channel geometry being the primary factor. Most of the channel geometry analyses were limited to few number of case studies, whereas in this study total 73 case studies were analyzed for the optimization of channel and land width. A three dimensional isothermal single phase flow mathematical model is developed and further validated with experimental study to optimize the channel and land width through parametric sweep function for a staggering 73 number of case studies. The optimization analyses are carried out for a straight channel geometry considering a fixed operating voltage of 0.4 V and channel depth of 1.0 mm. Due to the large number of case studies, the analyzed performance parameters i.e. current density and pressure drop are easily understandable for the change in different channel and land width. The numerical results predicted that the pressure drop is more dependent on channel width compare to the land width and anode pressure drop is less significant than cathode pressure drop. However, both channel and land width have an equal importance on the cell current density. Considering channel pressure drop and current density, the optimization analyses showed that the channel to land width of 1.0 mm/1.0 mm would be best suitable for PEMFC channel geometry.

流场在质子交换膜（PEM）燃料电池中起着至关重要的作用，其中通道的几何形状是主要因素。大多数渠道几何分析仅限于少数案例研究，而在本研究中，总共对73个案例研究进行了分析，以优化渠道和土地宽度。建立了三维等温单相流数学模型，并通过实验研究进行了验证，以通过参数扫描函数优化河道和陆地宽度，进行了多达73个案例研究。考虑到0.4 V的固定工作电压和1.0 mm的通道深度，对直通道几何结构进行了优化分析。由于大量的案例研究，分析的性能参数即 对于不同的通道和焊盘宽度的变化，电流密度和压降很容易理解。数值结果预测，与平台宽度相比，压降更多地取决于通道宽度，而阳极压降不如阴极压降显着。但是，沟道宽度和焊盘宽度对电池电流密度都具有同等重要的意义。考虑到通道压降和电流密度，优化分析表明，通道至平台宽度1.0 mm / 1.0 mm最适合PEMFC通道几何形状。沟道宽度和焊盘宽度对电池电流密度都具有同等重要的意义。考虑到通道压降和电流密度，优化分析表明，通道至平台宽度1.0 mm / 1.0 mm最适合PEMFC通道几何形状。沟道宽度和焊盘宽度对电池电流密度都具有同等重要的意义。考虑到通道压降和电流密度，优化分析表明，通道至平台宽度1.0 mm / 1.0 mm最适合PEMFC通道几何形状。