当雷诺数等于 1000 时，f 随弯曲角度和人字形间距长度变化的结果如图所示。当人字形弯曲角度为 25°，人字形间距长度从 5 mm 增加到 32 mm 时，f 增加了 23.4%。当人字形螺距长度 lz = 7 mm，人字形角度从 5° 增加到 45° 时，f 增加了 66.1 %。因此，在人字形冷热水管道的结构参数中，角度会影响冷热水管道的流动性能。冷侧过道结构 f 分析显示了相似性。

Results of f variation with bending angle and zigzag pitch length are shown in Figure When the Reynolds number is equal to 1000. When the zigzag angle is 25°, the zigzag pitch length increases from 5 mm to 32 mm, f increases by 23.4 %. When the zigzag pitch length lz = 7 mm and the zigzag angle increased from 5° to 45°, f increased by 66.1 %. Therefore, among the zigzag PCHE structural parameters, the angle influences the PCHE to flow properties. The cold side aisle structural f analysis shows the similarity.