摘要
设计一种通过交变电磁力作用,使液体得到有效混合的微混合器。基于微尺度的无滑移模型,建立了微型管道内液体流动及混合的模拟方法,并开发了计算程序,对微管道内流体的流动与混合过程进行数值模拟,得到了流场分布图。通过交变电压的作用而产生交变的电磁力,对流场产生扰动,从而提高了微型管道中不同流体的混合效率。分析比较不同交变周期下的混合方案,并对其混合效率进行了评价。
A micro-mixer for liquids mixing based on the reaction of AC magneto-hydrodynamic （MHD） is presented. In order to obtain the distribution of the flow field, a simulation method for fluid flowing and mixing in the micro channel is established, and the programs for simulating the flowing and mixing process based on micro scale non- slide mode are developed. Through the alternating electro-magnetic force by the action of alternating voltage, the mixing efficiency for different fluids in micro channel is im- proved. The mixing cases for different periods are analyzed,and the mixing efficiency is evaluated.
出处
《计算力学学报》
EI
CAS
CSCD
北大核心
2012年第5期800-805,共6页
Chinese Journal of Computational Mechanics
关键词
微流动
电磁力
主动混合
数值模拟
micro flow
electro-magnetic dynamic
active mixing numerical simulation
