503 蠕動運動型ポンプの熱流動特性に関する数値解析(第2報)(OS05.複雑熱流体現象の数値シミュレーション)

概要

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A peristaltic pump, in which the channel walls periodically fluctuate in the form of a traveling wave, is believed to be effective particularly in micro devices such as μTAS due to its compactness, low fabrication cost and high applicability to various biological fluids. In this paper, two-dimensional numerical simulation using immersed boundary method is conducted for a flow in a channel with walls of peristaltic motion, and the effects of the amplitude and velocity of the peristaltic wall on the flow characteristics and pump performance are studied. Considering the work applied to the fluid from the wall, a better pumping performance was obtained by increasing the wall fluctuation amplitude. Furthermore, a pair of counter rotating flow circulations was obtained in this case, which may be applicable to fluid mixing, heat transfer enhancement and biological cell controling.
社団法人日本機械学会の論文
2007-11-25