The Rosensweig instability at the interface between ferrofluids and immiscible fluids

被引：0

作者：

Li, Liu ^{[1
]}

Li, Decai ^{[1
,2
]}

Wang, Lu ^{[1
]}

Wang, Zhibin ^{[1
]}

Liang, Zhiqi ^{[1
]}

Zhang, Zhili ^{[1
]}

机构：

[1] Beijing Jiaotong Univ, Sch Mech Elect & Control Engn, Beijing 100044, Peoples R China

[2] Tsinghua Univ, State Key Lab Tribol, Beijing 100084, Peoples R China

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2024年 / 589卷

基金：

中国国家自然科学基金;

关键词：

MAGNETIC FLUID; STABILITY; DYNAMICS;

D O I：

10.1016/j.jmmm.2023.171608

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this study, the Rosensweig instability at the interface between ferrofluids and other immiscible fluids is systematically studied. Stable water based ferrofluids with saturated magnetization as high as 25.4 kA/m are successfully synthesized. The surface tension, density and viscosity of water based ferrofluids used in this study are systematically and scientifically studied. Concentrated coils magnetic field generator is constructed to evaluate the experimental results of Rosensweig instability at the interface between ferrofluids and immiscible fluids. Combined with the theoretical results, the simulation results are obtained from our model to evaluate the Rosensweig instability at the interfaces. The well accordance between experimental results and the theoretical simulation results indicates that the Rosensweig instability is easily generating at interfaces between ferrofluids and oils than the interfaces between ferrofluids and air. This result could be attributed to the surface tension and buoyance of liquids on the ferrofluids.

引用

页数：8

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