n. cavitation
misc. cavitation erosion ; cavitation damage
The results show that the sudden enlargement between the circular inlet and the shaft in this spillway is significantly different from the traditional face-stuck shaft. This can prevent cavitation of the vertical shaft by high-velocity flow,reducing the difficulty of construction.
研究表明,该溢洪道自环形进水口以下采用突扩方式与竖井连接所形成的脱壁水流结构,与传统的贴壁式竖井的水流结构具有明显不同,不仅可以有效避免竖井段因水流流速较高可能造成的空化空蚀破坏,降低施工难度,而且有利于水舌掺气并促进消力井消能。
参考来源 - 导流洞改建为跌流式竖井溢洪道的试验研究·2,447,543篇论文数据，部分数据来源于NoteExpress
在深井中，边界条件发生了变化，可以推测空蚀存在。
In deep silo, that the cavitation corrosion exists could be deduced as the boundary conditions changed.
磨损、空蚀是农机具及泵装置使用中安全可靠性的主要问题。
Wear and cavitations are major problems affecting safe operation in using agricultural machinery and pump.
然而，在全尺寸的水轮机上直接用肉眼观察空蚀几乎是不可能的。
However, it is impossible to obverse the whole size turbine directly by naked eyes.
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