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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… Click to show full abstract
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.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.
Journal Title: Physics of Fluids
Year Published: 2019
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