716 磁場増加区間の液体金属磁性流体流れにおける流体駆動力の生成

概要

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Three-dimensional numerical calculations have been performed on the generation of fluid driving force in liquid-metal magnetic fluid (liquid-metal including ferromagnetic particles) and water magnetic fluid (water including ferromagnetic particles) flowing in an increasing magnetic field. It has become clear from the calculations that the liquid-metal magnetic fluid including ferromagnetic particles with volume concentrations greater than 0.0007 can produce the magnetic force which overcomes the Lorentz force. Next, experiments on water magnetic fluid and numerical calculations corresponding to the experiments have been performed. The numerical calculations can predict experimental results qualitatively; however, it is necessary to improve the numerical calculations in order to predict liquid-droplets two-phase flow behavior.