Sound damping in ferrofluids:: Magnetically enhanced compressional viscosity -: art. no. 031201

被引:18
作者
Müller, HW
Jiang, YM
Liu, M
机构
[1] Max Planck Inst Polymer Res, D-55128 Mainz, Germany
[2] Univ Tubingen, D-72076 Tubingen, Germany
[3] Cent S Univ, Dept Appl Phys & Heat Engn, Changsha 410083, Peoples R China
来源
PHYSICAL REVIEW E | 2003年 / 67卷 / 03期
关键词
D O I
10.1103/PhysRevE.67.031201
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
The damping of sound waves in magnetized ferrofluids is investigated and shown to be considerably higher than in the nonmagnetized case. This fact may be interpreted as a field-enhanced, effective compressional viscosity-in analogy to the ubiquitous field-enhanced shear viscosity that is known to be the reason for many unusual behaviors of ferrofluids under shear.
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页数:5
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