磁性液滴と液体自由表面の衝突 : ターゲット流体の相違 (小特集電磁力関連流体工学)

概要

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An experimental study is presented for the subsurface phenomena and the splashing produced by the impact of magnetic fluid drops against the target surface of various liquids under nonmagnetic and magnetic fields. Magnetic fluid used in the experiment as the projectile drop was water-based ferricolloid W-35. Kerosene and distilled water were used as the target liquids. High-speed movies were taken of the formation of the subsurface cavity and the sedimentation of magnetic fluid during the splash of a drop. Without applied magnetic fields, the sequence of events following the impact of a magnetic fluid drop was usually found to be similar to that of a water drop in the formation of the subsurface cavity and the Rayleigh jet. On the other hand, under the applied magnetic fields, the size of the subsurface cavity was very small, and the Rayleigh jet was also very small. The sedimentation velocity of magnetic fluid in distilled water under magnetic field was different from that in the kerosene target.
一般社団法人日本機械学会の論文
1993-06-25