基于液滴碰撞模型的AP1000波形板汽-水分离器性能及结构优化研究

基于已有的液滴碰撞模型，采用数值模拟方法研究了AP1000波形板汽-水分离器的分离性能，通过优化波形板内部结构得到了具有高效低阻特点的波形板。首先采用液滴碰撞模型对波形板内液滴行为进行数学描述，然后对模型进行了数值求解。随后通过模拟液滴在波形板内的运动和碰撞等行为，得到了波形板对含有不同直径液滴、不同入口液滴体积份额的湿饱和蒸汽来流的分离性能与其内部湿度分布。进而通过对波形板结构的改造设计，达到了提高分离效率、降低流动阻力的目的。本文所采用的数值模拟方法对AP1000波形板汽-水分离器的性能优化有着实际的指导意义。

Study on Separation Ability and Structure Optimization of AP1000 Wave-type Plate Steam-water Separator Based on Droplet Collision Model

The separation ability of AP1000 wave-type plate steam-water separator was studied numerically based on proposed droplet collision model. A wave-type plate with high separation efficiency and low flow resistance was designed by structure optimization. Firstly, the behavior of droplet was described mathematically by droplet collision model, and then the model was solved numerically. Secondly, the separation efficiency and equivalent moisture distribution of droplet with different droplet diameters and different inlet droplet volume fractions were obtained, by simulating the moving and colliding behaviors of droplet in a wave-type plate. Thirdly, through the modification design of the wave-type plate structure, the purpose of improving separation efficiency and reducing flow resistance was achieved. The numerical simulation method used in this paper has practical significance for the performance optimization of AP1000 wave-type plate steam-water separator.