S0502-3-5 先鋭化電極近傍の電場誘起流動(機能性流体工学の先端融合化(3))

概要

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A micro scale flow structure induced with alternating electric field around a sharp electrode in a particle dispersion fluid was investigated using a micro particle image velocimetry. This flow structure consists of a micro jet from the tip of the sharp electrode and circulation flows around it. This is widely useful for a DNA or CNT manipulating and this is available for a micro fluidic device and novel nano scale manufacturing process. It is easy that the flow structure is controlled with a shape of the electrode and the alternating electric field conditions. In this study, it was clear that the slant severed type electrode was able to generate the stable micro flow structure and the local velocity of this flow structure increase directly with the square or cube of the electric field intensity. These results suggest that this flow induced with the alternating electric field is concerned with the dielectricphresis and this flow structure is able to control with the shape of the electrode.
一般社団法人日本機械学会の論文
2009-09-12