Velocity measurement on Taylor-Couette flow of a magnetic fluid with small aspect ratio
Velocity measurement on Taylor-Couette flow of a magnetic fluid with small aspect ratio
复制标题
小长径比磁流体泰勒-库埃特流的速度测量
DOI：
10.1016/j.jmmm.2004.11.097
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发表时间：
2005
影响因子：
2.7
通讯作者：
Y. Takeda
中科院分区：
文献类型：
--
作者：
H. Kikura;M. Aritomi;Y. Takeda
介绍了超声声速剖面法在磁流体流动研究中的应用。本研究的目的是利用UVP方法测量小纵横比Taylor-Couette流动下磁性流体的内部流动，并分析外加磁场的影响。研究了磁流体在内圆柱旋转时，在小长径比为3、半径比为0.6的同心圆环内的流动结构。使用UVP测量技术测量轴向速度分布。使用位于圆柱体外部的永磁体向流场施加非均匀磁场。结果表明，UVP方法能够提供磁流体中小纵横比Taylor-Couette流的结构信息。
In this paper, the application of ultrasonic velocity profile (UVP) method to investigate magnetic-fluids flow is described. The objective of the research is to measure the internal flow of a magnetic fluid on Taylor–Couette flow with small aspect ratio using the UVP method and to analyze the influence of the applied magnetic field. The flow structure of a magnetic fluid in a concentric annular geometry with a small aspect ratio of 3 and a radius ratio of 0.6 for an inner-cylinder rotation was investigated. Axial velocity distributions were measured using the UVP measurement technique. A non-uniform magnetic field was applied to the flow field using a permanent magnet, located outside of the cylinders. The results demonstrated that the UVP method was capable to provide the information on the structure of Taylor–Couette flow with small aspect ratio, in a magnetic fluid.