光圧マイクロ回転体の撹拌混合生能に関する研究(S20-4 撹拌・混合,S20 マイクロ・ナノスケールの流動現象)

概要

論文の詳細を見る
Effective mixing is an important task in micro-fluidics for chemical and biochemical applications. Because, of the small scales, flow regime in small device is predominantly laminar, so the efficient mixing obtained in turbulent flows is not practically attainable. In order to promote the convective mixing performance in these systems, macro-scale mixing technique such as mechanical stirring is necessary. A shuttlecock optical micro-rotor, which rotates in fluids and stirs the fluids in such micro scale systems, is introduced for this purpose. To investigate the rotor's mixing performance in the flow fields, CFD technique is used in this paper. The results indicate that optical micro-rotor has more effect on the mixing. In this way, convection occurs to enhance the mixing. The mixing efficiency is calculated on the outlet of the flow field. It is found that the mixing efficiency can be enhanced by increasing rotation speed.
一般社団法人日本機械学会の論文
2004-09-04