Cluster formation and growth in flow of dilute particle suspension in microchannels

Tarun Gudipaty, Luthur S.L. Cheung, Linan Jiang, Yitshak Zohar

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Microchannels are susceptible to blockage by solid particles. The lifetime of microfluidic devices depends on their ability to maintain flow without interruption, while certain applications require microdevices for transport of liquids containing particles. In this work, the phenomenon of interest is the formation and growth of clusters in the flow of a dilute suspension of hard spheres. Based on the present experiments, aggregation of clusters was observed for particle-laden flow in a microchannel 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 is presented. Although the cluster size seems to be independent of location, higher number of clusters is found at the inlet/outlet regions than in the microchannel center. Similar to individual cluster, the total cluster area in the microchannel grows almost linearly in time. The effects of flow rate, particle size and concentration are also reported.

Original languageEnglish (US)
Title of host publication2008 Proceedings of the 9th Biennial Conference on Engineering Systems Design and Analysis
Pages357-362
Number of pages6
StatePublished - Sep 21 2009
Event2008 9th Biennial Conference on Engineering Systems Design and Analysis - Haifa, Israel
Duration: Jul 7 2008Jul 9 2008

Publication series

Name2008 Proceedings of the 9th Biennial Conference on Engineering Systems Design and Analysis
Volume4

Other

Other2008 9th Biennial Conference on Engineering Systems Design and Analysis
CountryIsrael
CityHaifa
Period7/7/087/9/08

ASJC Scopus subject areas

  • Computational Mechanics
  • Control and Systems Engineering
  • Mechanical Engineering

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  • Cite this

    Gudipaty, T., Cheung, L. S. L., Jiang, L., & Zohar, Y. (2009). Cluster formation and growth in flow of dilute particle suspension in microchannels. In 2008 Proceedings of the 9th Biennial Conference on Engineering Systems Design and Analysis (pp. 357-362). (2008 Proceedings of the 9th Biennial Conference on Engineering Systems Design and Analysis; Vol. 4).