过对旋转式冲刷腐蚀试验装置流速场的简化计算，得出如下流速场运动规律：（1）试样表面各点相对速度随冲蚀角增大而增大；（2）离旋转中心越远相对速度越大，靠近旋转圆盘相对速度为零；（3）有挡板使得相对速度比无挡板显著增大；（4）冲蚀角α＝45°时，冲刷作用最强烈；α＜45°时，材料主要承受切向冲刷作用；α＞45°时，材料主要承受法向冲刷作用。 After simplifying the calculation of the velocity field of the rotary erosion test apparatus, the following laws of the velocity field are obtained: (1) the relative velocity at each point of the specimen surface increases with the increase of the erosion angle; (2) the farther away from the rotation center The relative velocity is higher, the relative velocity near the rotating disk is zero; (3) the baffle makes the relative velocity significantly increase than that without baffle; (4) When the erosion angle α = 45 °, the scouring effect is the strongest; α < 45 °, the material mainly bear tangential scouring effect; α> 45 °, the material mainly to withstand the normal scouring effect.