The effect of water quality on tip vortex cavitation inception

被引：0
|
作者：
张凌新 [1 ,2 ]
陈林娅 [1 ]
彭晓星 [3 ]
邵雪明 [1 ]
机构：
[1] State Key Laboratory of Fluid Power and Mechatronic System, Department of Mechanics, Zhejiang University
[2] Key Laboratory of Soft Machines and Smart Devices of Zhejiang Province
[3] National Key Laboratory on Ship Vibration and Noise,China Ship Scientific Research Center
来源：
Journal of Hydrodynamics | 2017年 / 29卷 / 06期
基金：
中国国家自然科学基金;
关键词：
Water quality; cavitation inception; capture time; tensile strength;
D O I：
暂无
中图分类号：
O35 [流体力学];
学科分类号：
080103 ; 080704 ;
摘要：
The inception of tip vortex cavitation is very sensitive to water quality. In order to quantify the effect of water quality on the inception of tip vortex cavitation, we develop a motion model to describe the migration and growth of nuclei in water. An analytical solution of migration of nuclei in a vortex flow is obtained so that the capture times of various nuclei can be given out directly. A criterion is built to determine the critical nucleus in a certain nuclei spectra distribution. Tensile strength of the critical nucleus is used to quantify the effect of water quality and correct the tip vortex cavitation inception number. Finally this change of cavitation inception number is compared with experimental results to validate our model.
引用
收藏
页码：954 / 961
页数：8
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