Recent Developments in Cavitation Mechanisms: A Guide for Scientists and Engineers
Recent Developments in Cavitation Mechanisms: A Guide for Scientists and Engineers
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空化机制的最新进展：科学家和工程师指南
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发表时间：
2014
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通讯作者：
S. Washio
中科院分区：
文献类型：
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作者：
S. Washio
空化是如何开始的？目前，核心理论为这一根本问题提供了答案。然而，原子核的概念包含了无法合理化的不准确之处。空化机制的最新进展讨论了围绕原子核理论的不确定性，并提出了另一种空化机制理论。这一新理论的特点是基于最近发现的分离流动中的空穴产生现象。这本书由几章组成，介绍了诸如空化核的不健壮性，以及液压油和水流动中流动分离壁上的空穴产生现象。随后的章节包括流动分离点处空穴的产生机制，液体中固体之间接触运动的成核，以及基于流动分离和固体接触的新的空化机制的提出。最后几章对液压锥阀的一种新的空化机理进行了论证和总结。提出了一种新的液机空化起始机理。详细描述了作者最近发现的在分流点产生空穴的现象。讨论了空穴产生的特殊性质。给出了以高时间和空间分辨率获得的丰富的初始空化实验数据。提供了慢动作视频的补充材料，可以帮助理解作者已经发现的、许多人仍然不熟悉的非常快速和微小的空穴产生现象
How does cavitation start? Presently, the nucleus theory provides the answer to this fundamental question. However the idea of nuclei contains inaccuracies that cannot be rationalized. Recent Developments in Cavitation Mechanisms discusses the uncertainties surrounding the nucleus theory, and proposes another theory of cavitation mechanism. Characteristically, the new theory is based on recent discoveries of cavity generation phenomena in separating flows. This book consists of chapters that introduce topics such as unsoundness of cavitation nuclei, and phenomena of cavity generation on walls of flow separation in hydraulic oil and water flows. Subsequent chapters cover the mechanism of cavity generation at point of flow separation, nucleation by contact motion between solids in liquid and a proposal of new cavitation mechanism based on flow separation and solid contact. The final chapters present the demonstration of a new mechanism in the hydraulic poppet valve and a concluding summary.proposes a new mechanism of cavitation inception in liquid machinesdescribes in detail phenomena of cavity generation at point of flow separation recently discovered by the authordiscusses peculiar properties of flow separation as cause of cavity generationpresents abundant experimental data of incipient cavitation obtained with high resolution of time and spaceprovides supplementary materials of slow motion videos that can help understand the very rapid and minute phenomena of cavity generation which has been discovered by the author and will be still unfamiliar to many