摘要
为优化掺气设施体型并对其水力特性进行研究,在已有理论研究成果与工程实践经验基础上,从水流掺气减蚀机理、掺气水流运动特性及掺气设施体型及布置三方面评述了水流掺气减蚀技术研究进展。针对目前掺气减蚀技术研究中存在的不足,认为今后应进一步加强多泡情况下空化泡-空气泡-边壁微观作用机制,近壁(底板、侧壁)水体掺气浓度、气泡特征的沿程演变规律,复杂条件下掺气设施体型优化等方面的研究。
In order to optimize the shape of aeration devices and study their hydraulic characteristics, based on previous research achievements and engineering application experience, the mechanisms of flow aeration on mitigating cavitation erosion, dynamic characteristics of aeration flow, and shape and arrangement of aeration devices are reviewed in this study. Aiming at the shortcomings of the current research, it is suggested that research on the microcosmic mechanism of multi-bubble interaction such as cavitation bubble-air bubble-boundary interaction, the evolution law of aeration concentration and bubble characteristics in near-wall(floor, side wall) water body, and the optimization of aeration facility shape under complex conditions should be further strengthened.
引文
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