Abstract

A new physical (experimental) model of cavitation destruction of the materials studied is proposed. In the modern model of the cavitation effect, the destruction of materials is associated with the impacts of cumulative jets, which are formed during the asymmetric slamming of cavitation bubbles near the solid surface, and the shock waves that occur during their compression. In the new model, erosion damage is explained by the formation of cavitation tubes (с-tubes) with a spiral high-frequency structure in the materials under consideration, and these tubes were previously unknown in the literature. The destruction of materials is associated with the focusing of acoustic energy along the axis of the spiral structures. When the energy is focused, there is a significant increase in the pressure and temperature along the axis of the spiral structures, which leads to the destruction of the materials under study.

中文翻译：

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侵蚀破坏的新模型

摘要

提出了一种新的物理（实验）空化破坏所研究材料的模型。在现代的空化效应模型中，材料的破坏与累积射流的影响有关，累积射流是在固体表面附近空化泡不对称撞击期间形成的，其压缩过程中会产生冲击波。在新模型中，腐蚀损害是通过在所考虑的材料中形成具有螺旋高频结构的气蚀管（с-管）来解释的，而这些管以前在文献中是未知的。材料的破坏与声能沿螺旋结构轴的聚焦有关。当能量集中时，沿着螺旋结构的轴的压力和温度会显着增加，