Kaye效应的实验观察和稀释过程  

Experimental Observation and Dilution Process of Kaye Effect

作　　者：许轶臣 薛若岚 薛文瑾 曹锦华 赵伟[2] 谢宁[2] 张增明[2] XU Yichen;XUE Ruolan;XUE Wenjin;CAO Jinhua;ZHAO Wei;XIE Ning;ZHANG Zengming(School of the Gifted Young;School of Physical Sciences, University of Science and Technology of China, Hefei 230026, China)

机构地区：[1]中国科学技术大学少年班学院,合肥230026 [2]中国科学技术大学物理实验教学中心,合肥230026

出　　处：《实验室研究与探索》2018年第2期45-47,共3页Research and Exploration In Laboratory

摘　　要：Kaye效应是指将混合黏稠有机溶液倒在物体表面时,在倾倒液体位置突然喷出一束液体的流体物理现象。对所有具有剪切变稀特性的液体都能观察到Kaye效应,但由于这一过程持续时间很短因而不容易观察易被忽略。使用倾斜导轨搭配高速摄像机可以观察并记录洗发液黏滞流体的Kaye效应整个过程,根据实验观察进一步研究了不同稀释程度下Kaye效应的特点。最后,根据黏滞流体的规律建立物理模型,对不同稀释程度的Kaye效应进行了初步解释。Kaye effect refers to the phenomenon that in the dumping position of the liquid suddenly ejected a liquid stream when a mixture of viscous organic solution jetting on the surface of an object.The Kaye effect is observed for all liquids with shear-thinning properties,but this process is so short,and is not easy to observe but is easily overlooked.In this paper,the whole process of Kaye effect of the viscous fluid in shampoo was successfully observed and recorded by using oblique guide rail of shampoo and a high-speed camera.The characteristics of Kaye effect under different dilution degree were further studied.Finally,the Kaye effect of different dilution degree was explained based on a physical model of viscous fluids.

关 键 词：非牛顿流体 Kaye效应 剪切变稀 

分 类 号：O357.1[理学—流体力学]