High-speed videomicroscopy and magnetorheology under triaxial unsteady magnetic fields

被引：3

作者：

Martinez-Cano, O. ^{[1
,2
]}

Morillas, J. R. ^{[1
,2
]}

Ruiz-Nievas, J. ^{[1
,2
]}

Camacho, G. ^{[1
,2
]}

Rodriguez-Barroso, A. ^{[1
,2
]}

Ramirez, J. ^{[3
]}

de Vicente, J. ^{[1
,2
]}

机构：

[1] Univ Granada, F2N2Lab, Magnet Soft Matter Grp, C Fuentenueva S N, Granada 18071, Spain

[2] Univ Granada, Fac Sci, Dept Appl Phys, Excellence Res Unit Modeling Nat MNat, C Fuentenueva S N, Granada 18071, Spain

[3] Univ Granada, Sch Technol & Telecommun Engn, Dept Signal Theory Networking & Commun, C Periodista Daniel Saucedo Aranda S N, Granada 18014, Spain

来源：

PHYSICAL REVIEW E | 2025年 / 111卷 / 02期

基金：

欧盟地平线“2020”;

关键词：

AGGREGATION; MASON;

D O I：

10.1103/PhysRevE.111.025415

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

We describe a custom-built device that is capable of superimposing triaxial unsteady magnetic fields on a sample at the same time that its microstructure is visualized using a high-speed camera and its rheological properties are measured with a commercial rheometer. The device reaches field strengths up to 5 kA <middle dot> m-1, frequencies up to 4 kHz, and its functionality is evaluated by testing magnetorheological fluids under steady shear flow and field transients. Striking differences are found at small Mason numbers by changing the field configuration.

引用

页数：9

共 28 条

[1] A structural viscosity model for magnetorheology [J].