Mixing performance of asymmetric split and recombine micromixer with fan-shaped cavity - 文章详情页

作者：

Xia, Guodong (Xia, Guodong.) (学者：夏国栋) | Li, Jian (Li, Jian.) (学者：李坚) | Wu, Hongjie (Wu, Hongjie.) | Zhou, Mingzheng (Zhou, Mingzheng.)

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摘要：

A　novel　design　of　passive　micromixer　based　on　mechanism　of　planar　asymmetric　split　and　recombine(P-ASAR)　of　fluid　stream　was　proposed.　Mixing　performance　of　this　micromixer　was　analyzed　numerically　with　three-dimensional　Navier-Stokes　equations.　The　steady　laminar　flow　was　solved　by　using　the　finite-volume　method　and　SIMPLE　algorithm.　The　mixing　index　as　the　measure　of　mixing　performance,　was　investigated　at　a　range　of　Reynolds　numbers(1-80).　The　result　showed　significant　increase　of　mixing　index　for　the　P-ASAR　micromixer　with　fan-shaped　cavity　in　the　sub-channel.　The　geometrical　parameters　of　fan-shaped　cavity　affected　mixing　index　of　this　type　of　micromixer.　With　mixing　intensity　and　pump　power　consumption　in　mind,　mixing　index　of　the　P-ASAR　micromixer　with　fan-shaped　cavity　could　reach　around　78%　when　the　width　ratio　of　major　sub-channel　to　fan-shaped　cavity　channel　is　1/3.　©　All　Rights　Reserved.

关键词：

Computer simulation Finite volume method Geometry Laminar flow Mixers (machinery) Mixing Navier Stokes equations Reynolds number

作者机构：

[ 1 ] [Xia, Guodong]Key Laboratory of Enhanced Heat Transfer and Energy Conservation, School of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China
[ 2 ] [Li, Jian]Key Laboratory of Enhanced Heat Transfer and Energy Conservation, School of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China
[ 3 ] [Wu, Hongjie]Key Laboratory of Enhanced Heat Transfer and Energy Conservation, School of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China
[ 4 ] [Zhou, Mingzheng]Key Laboratory of Enhanced Heat Transfer and Energy Conservation, School of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China

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电子邮件地址：

xgd@bjut.edu.cn

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