Sound waves in polarized fluids

The speed of sound is known to depend only on the properties of the medium through which it travels. In this paper, we show that polarizing a dielectric fluid reduces the speed of sound waves in it. We also show that the reduction depends on the magnitude of the field. The striction force causing th...

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Bibliographic Details
Published inPhysics of fluids (1994) Vol. 31; no. 7
Main Author Joshi, Amey S.
Format Journal Article
LanguageEnglish
Published Melville American Institute of Physics 01.07.2019
Subjects
Ferrofluids
Fluid dynamics
Physics
Sound waves
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Summary:The speed of sound is known to depend only on the properties of the medium through which it travels. In this paper, we show that polarizing a dielectric fluid reduces the speed of sound waves in it. We also show that the reduction depends on the magnitude of the field. The striction force causing the slowing of sound in dielectric fluids is also present in a polarized ferrofluid. However, it is far too feeble to cause an observable effect.
ISSN:1070-6631
1089-7666
DOI:10.1063/1.5096369