NDLI: Cluster formation and growth in microchannel flow of dilute particle suspensions

Content Provider	Springer Nature Link
Author	Gudipaty, Tarun Stamm, Matthew T. Cheung, Luthur S. L. Jiang, Linan Zohar, Yitshak
Copyright Year	2010
Abstract	The lifetime of microfluidic devices depends on their ability to maintain flow without interruption. Certain applications require microdevices for transport of liquids containing particles. However, microchannels are susceptible to blockage by solid particles. Therefore, in this study, the phenomenon of interest is the formation and growth of clusters on a microchannel surface in the flow of a dilute suspension of hard spheres. Based on the present experiments, aggregation of clusters was observed for particle-laden flows in microchannels with particle void fraction as low as 0.001 and particle diameter to channel height ratio as low as 0.1. The incipience and growth of a single cluster is discussed, and the spatial distribution and time evolution of clusters along the microchannel are presented. Although the cluster size seems to be independent of location, more clusters are found at the inlet/outlet regions than in the microchannel center. Similarly as for an individual cluster, as long as particle–cluster interaction is the dominant mode, the total cluster area in the microchannel grows almost linearly in time. The effects of flow rate, particle size, and concentration are also reported.
Starting Page	661
Ending Page	669
Page Count	9
File Format	PDF
ISSN	16134982
Journal	Microfluidics and Nanofluidics
Volume Number	10
Issue Number	3
e-ISSN	16134990
Language	English
Publisher	Springer-Verlag
Publisher Date	2010-10-13
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Microchannel suspension flow Particle aggregation Cluster formation and growth Engineering Fluid Dynamics Biomedical Engineering Industrial Chemistry/Chemical Engineering
Content Type	Text
Resource Type	Article
Subject	Nanoscience and Nanotechnology Materials Chemistry Condensed Matter Physics Electronic, Optical and Magnetic Materials

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