流体運動駆動源への磁性流体の応用

概要

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Studies of oscillatory pipe flow driven by the reciprocating motion of a magnetic fluid column are carried out as fundamental work toward an application to a driving source of fluid motion. In the present experiment, the motion is induced by a sinusoidal oscillating magnetic field. A system of pipes of different sizes is employed to examine the characteristics of the oscillatory flow. Larger displacement is attained in the case where the upper surface of the magnetic fluid column is initially set below the center of the magnetic field. In order to predict the characteristics of the pipe flow driven by the magnetic fluid motion, a numerical analysis is also conducted. The governing equation, in which frictional resistance of laminar flow and other flow losses are included, is expressed as a nonlinear ordinary differential equation and calculated numerically under conditions similar to those of the experiment. Computational results agree well with data obtained from the experiment.
一般社団法人日本機械学会の論文
1993-01-25