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在工作断面为矩形的文透里型空化管中进行了挟沙水流中闸门槽的空蚀与磨损实验．门槽的宽深比B／D＝1．5，材质为铝，沙样为黄河沙与塑料沙．泥沙颗粒在门槽中的冲撞部位在滞点附近，其运动轨迹为随机性质的波段状．门槽下游不同部位的蚀损程度不同，严重部位在门槽下游分离型空腔的重附点附近．对不同挟沙浓度与水流流速对壁面蚀损量的影响进行了实验，结果表明，随着含沙量的提高，蚀损量增加．在本实验条件下，铝试件的特征蚀损点划率与含沙量的关系为N＝ASm＋B，与流速的2．66次方成比例，硬度较高的黄河沙，其蚀损量高于塑料沙．
Cavitation and abrasion experiments were carried out in a venturi-type cavitation tube with a rectangular working cross-section. Door slot width ratio of B / D = 1.5, made of aluminum, sand samples for the Yellow River sand and plastic sand. Sludge particles in the door slot in the collision near the stagnation point, and its trajectory for the band of random nature. Different parts of the downstream gate erosion of different degrees, a serious part of the door slot downstream of the separation cavity near the attachment point. Experiments were conducted on the effects of sediment concentration and water flow velocity on the wall erosion. The results show that the erosion loss increases with the increase of sediment concentration. Under the experimental conditions, the characteristic erosion dot rate of aluminum specimen is related to the sediment concentration as N = ASm + B, which is proportional to the flow rate of 2.66 times. The higher the hardness of the Yellow River sand, the higher the erosion loss In plastic sand.