期刊
JOURNAL OF FLUID MECHANICS
卷 948, 期 -, 页码 -出版社
CAMBRIDGE UNIV PRESS
DOI: 10.1017/jfm.2022.691
关键词
magnetic fluids; capillary waves; surface gravity waves
The influence of a magnetic field on the pattern of stationary waves formed on the surface of a magnetic fluid has been studied both theoretically and experimentally. It is found that a vertical magnetic field affects the shape and amplitude of the wave cone, while a horizontal magnetic field affects the extent of cone expansion and amplitude.
The influence of a magnetic field on the pattern of stationary waves formed on the surface of a magnetic fluid (ferrofluid) when an obstacle moves has been studied both theoretically and experimentally. It is found that a vertical magnetic field narrows the cone of stationary waves and increases their amplitude. In the wake region, the peaks of the Rosensweig instability appear in a magnetic field that is smaller than the critical field that determines this instability occurrence. A horizontal magnetic field parallel to the obstacle velocity expands the cone of waves but reduces their amplitude up to the suppression of stationary waves. A horizontal field perpendicular to the obstacle velocity also expands the cone of waves and stabilizes their amplitude.
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