Topology optimization of microfluidic mixers

This paper demonstrates the application of the topology optimization method as a general and systematic approach for microfluidic mixer design. The mixing process is modeled as convection dominated transport in low Reynolds number incompressible flow. The mixer performance is maximized by altering t...

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Veröffentlicht in:	International journal for numerical methods in fluids Jg. 61; H. 5; S. 498 - 513
Hauptverfasser:	Andreasen, Casper Schousboe, Gersborg, Allan Roulund, Sigmund, Ole
Format:	Journal Article
Sprache:	Englisch
Veröffentlicht:	Chichester, UK John Wiley & Sons, Ltd 20.10.2009 Wiley
Schlagworte:	Applied fluid mechanics Computational fluid dynamics Computational methods in fluid dynamics convection dominated transport Design engineering Exact sciences and technology finite element methods Fluid dynamics Fluid flow Fluidics Fundamental areas of phenomenology (including applications) incompressible flow laminar flow Mathematical models micro-fluids microfluidic mixing Microfluidics Mixers Navier-Stokes optimization Physics porous media Pressure drop sensitivity analysis stabilized FEM Topology optimization transport Mixing incompressible flow sensitivity analysis convection dominated transport Mixers Optimization Finite element method Micromixing Navier-Stokes Modelling stabilized FEM topology optimization Transport equation Computational fluid dynamics Digital simulation Topology transport microfluidic mixing micro-fluids Laminar flow Pressure drop finite element methods Incompressible fluid Microstructure porous media Microfluidics
ISSN:	0271-2091, 1097-0363, 1097-0363
Online-Zugang:	Volltext
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Zusammenfassung:	This paper demonstrates the application of the topology optimization method as a general and systematic approach for microfluidic mixer design. The mixing process is modeled as convection dominated transport in low Reynolds number incompressible flow. The mixer performance is maximized by altering the layout of flow/non‐flow regions subject to a constraint on the pressure drop between inlet and outlet. For a square cross‐sectioned pipe the mixing is increased by 70% compared with a straight pipe at the cost of a 2.5 fold increase in pressure drop. Another example where only the bottom profile of the channel is a design domain results in intricate herring bone patterns that confirm findings from the literature. Copyright © 2008 John Wiley & Sons, Ltd.
Bibliographie:	DCAMM Research School through a grant from the Danish Agency for Science, Technology and Innovation ark:/67375/WNG-FXS7HMBZ-6 Eurohorcs/ESF European Young Investigator Award (EURYI): 'Synthesis and topology optimization of optomechanical systems' Danish Center for Scientific Computing (DCSC) ArticleID:FLD1964 istex:7B9C9595D31669D8756D482DF4E57B0B28A1FFDC ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	0271-2091 1097-0363 1097-0363
DOI:	10.1002/fld.1964