Inertial focusing of neutrally buoyant particles in heterogenous suspensions
ID Hubman, Anže (Author), ID Plazl, Igor (Author), ID Urbič, Tomaž (Author)

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The modelling-based design of microfluidic devices leads to highly efficient process intensification, which provides insights into different temporal and spatial scales at which processes in various fields of application could be performed. This requires not only an understanding of the underlying mechanisms of different processes at the micro scale, but also the development of relevant computational tools. The macroscopic models are often unable to produce conclusive evidence for a given mechanism in systems with the complexity characterizing almost all chemical and biochemical processes. By contrast, mesoscale methods possess the unique ability to model relatively large physical systems, and, at the same time, effectively capture the essential features of the micro- and nanoscale structure, architecture, and relevant interactions. We demonstrate the feasibility and usefulness of this novel tool by considering a movement of neutrally buoyant particles in straight microchannels. The two-dimensional lattice Boltzmann method with immersed boundary conditions was used to study the influence of Reynolds number and particle diameter ratio on formation of particle trains. It was shown that an increase in particle diameter ratio leads to a less stable final particle configuration. An increase in Reynolds number was not found to significantly influence the train stability in the tested range.

Keywords:inertial lift, lattice-Boltzmann method, immersed-boundaries
Work type:Article
Typology:1.01 - Original Scientific Article
Organization:FKKT - Faculty of Chemistry and Chemical Technology
Publication status:Published
Publication version:Version of Record
Number of pages:7 str.
Numbering:Vol. 328, art. 115410
PID:20.500.12556/RUL-127171 This link opens in a new window
ISSN on article:0167-7322
DOI:10.1016/j.molliq.2021.115410 This link opens in a new window
COBISS.SI-ID:48091395 This link opens in a new window
Publication date in RUL:21.05.2021
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Record is a part of a journal

Title:Journal of molecular liquids
Shortened title:J. mol. liq.
COBISS.SI-ID:15382277 This link opens in a new window


License:CC BY 4.0, Creative Commons Attribution 4.0 International
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

Keywords:mikrofluidi, mrežna Boltzmannova metoda


Funder:ARRS - Slovenian Research Agency
Project number:P2-0191
Name:Kemijsko inženirstvo

Funder:ARRS - Slovenian Research Agency
Project number:P1-0201
Name:Fizikalna kemija

Funder:ARRS - Slovenian Research Agency
Project number:J7-1816
Name:Krožna sinteza trajnostnih (bio)kemijskih procesov na osnovi obnovljivih virov

Funder:ARRS - Slovenian Research Agency
Project number:J1-1708
Name:Raziskave agregacije proteinov v vodnih raztopinah soli in drugih topnih dodatkov

Funder:ARRS - Slovenian Research Agency
Project number:N2-0067
Name:Večstopenjska sinteza z MIO-encimi v kontinuirnem mikroreaktorskem sistemu

Funder:EC - European Commission
Funding programme:H2020
Project number:811040
Name:Chair Of Micro Process Engineering and TEchnology

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