Journal of the Korean Magnetics Society (한국자기학회지)

The Korean Magnetics Society (한국자기학회)
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A Study on Fluid Surface Movement Phenomena of Magnetic Fluids in a Container Subjected to a Horizontal Oscillation

수평진동이 있는 용기내 자성유체 액면 동요 현상에 관한 연구

  • Kim, Dae-Wan (Department of Mechanical Engineering, Donga Univ.) ;
  • Park, Joung-Woo (Department of Mechanical Engineering, Donga Univ.) ;
  • Seo, Lee-Soo (Department of Mechanical Engineering, Donga Univ.)
  • Received : 2012.09.20
  • Accepted : 2012.10.24
  • Published : 2012.10.31
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Abstract

In this paper, fluid movement of magnetic fluid which has free surface is investigated in a container subjected to a horizontal oscillation. Here, the vertical magnetic field is applied from the bottom of this container. The experiment is performed on the magnetic fluid in a rectangular and a cylindrical container and the effects of magnetic force exerted on the magnetic fluid are investigated on the resonance frequency and liquid surface displacement. The increase of magnetic field affects on the maximum resonance point and the liquid surface displacement. In result, it changes the amplitude of the surface wave and the period of sloshing fluid movement.

본 논문에서는 수평진동이 있는 용기내 자유표면을 갖는 자성유체에 용기하부로부터 수직자장을 인가시킨 경우 유동을 실험하였다. 실험은 직사각형 및 원통형 용기에 대해 자성유체에 인가된 자기력이 공진주파수, 액면변위에 미치는 영향을 조사하였다. 인가자장의 증가는 최대 공진점 및 액면변위에 영향을 미치고 그 결과 표면파의 진폭과 슬로싱 유동의 변동주기를 변화시킨다.

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References

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