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Journal Article

Sound damping in ferrofluids: Magnetically enhanced compressional viscosity

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http://pubman.mpdl.mpg.de/cone/persons/resource/persons48463

Müller,  H. W.
MPI for Polymer Research, Max Planck Society;

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Müller, H. W., Jiang, Y. M., & Liu, M. (2003). Sound damping in ferrofluids: Magnetically enhanced compressional viscosity. Physical Review E, 67(3): 031201.


Cite as: http://hdl.handle.net/11858/00-001M-0000-000F-6279-A
Abstract
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.