根据席壁冷却的传热模型，采用数值迭代法，对席壁的冷却特性参数即壁面热效率和壁面温比进行了计算。结果表明，席壁的冷却特性参数主要受壁面多孔度和冷却剂热容数的影响，边界换热条件的影响不显著。与已有的实验数据相比较，计算结果与之基本符合。 According to the heat transfer model of the wall cooling, numerical iteration method is used to calculate the cooling characteristic parameters of the wall, that is, the wall thermal efficiency and the wall temperature ratio. The results show that the cooling characteristic parameters of the wall mainly depend on the wall porosity and the heat capacity of the coolant, and the influence of the boundary heat exchange conditions is not significant. Compared with the existing experimental data, the calculation results are basically in line with it.