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Numerical study on the lateral migration of a deformable particle in rectangular channels.

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Title: Numerical study on the lateral migration of a deformable particle in rectangular channels.
Authors: Pan, Zhu1 (AUTHOR), Fan, Hu1 (AUTHOR) fanhu@zjtobacco.com, Yang, Shuai2 (AUTHOR) yangshuai@zjtobacco.com, Zhang, Minkang3 (AUTHOR), Lin, Zhaowu3 (AUTHOR) linzhaowu@zju.edu.cn, Guo, Yu3 (AUTHOR)
Source: Particulate Science & Technology. 2026, Vol. 44 Issue 4, p621-628. 8p.
Subjects: Poiseuille flow, Particle dynamics analysis, River channels, Particle motion
Abstract: We numerically investigate the lateral migration of deformable particles in rectangular-channel Poiseuille flow using a fictitious-domain method with distributed Lagrange multipliers. Compared with rigid particles, deformable particles experience significantly deformation-induced lift, driving them toward the channel corners. During migration, soft particles remain farther from the wall than stiff particles and, after reaching a corner, shift away from the corner along the bisector, whereas stiff particles attain stable equilibrium at the corner. In the case of cylindrical particles, migration is irregular and accompanied by stronger vorticity, enhanced cross-stream velocities, and continuous tumbling with pronounced deformation. By focusing on rectangular-channel geometry, this work reveals deformability-dependent corner migration and finite-offset equilibria that are absent in rigid-particle dynamics, and extends the analysis to deformable cylinders to expose shape-driven irregular migration and tumbling. [ABSTRACT FROM AUTHOR]
Copyright of Particulate Science & Technology is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 193364480
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Label: Title
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  Data: Numerical study on the lateral migration of a deformable particle in rectangular channels.
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  Data: <searchLink fieldCode="AR" term="%22Pan%2C+Zhu%22">Pan, Zhu</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Fan%2C+Hu%22">Fan, Hu</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> fanhu@zjtobacco.com</i><br /><searchLink fieldCode="AR" term="%22Yang%2C+Shuai%22">Yang, Shuai</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> yangshuai@zjtobacco.com</i><br /><searchLink fieldCode="AR" term="%22Zhang%2C+Minkang%22">Zhang, Minkang</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Lin%2C+Zhaowu%22">Lin, Zhaowu</searchLink><relatesTo>3</relatesTo> (AUTHOR)<i> linzhaowu@zju.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Guo%2C+Yu%22">Guo, Yu</searchLink><relatesTo>3</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Particulate+Science+%26+Technology%22">Particulate Science & Technology</searchLink>. 2026, Vol. 44 Issue 4, p621-628. 8p.
– Name: Subject
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  Data: <searchLink fieldCode="DE" term="%22Poiseuille+flow%22">Poiseuille flow</searchLink><br /><searchLink fieldCode="DE" term="%22Particle+dynamics+analysis%22">Particle dynamics analysis</searchLink><br /><searchLink fieldCode="DE" term="%22River+channels%22">River channels</searchLink><br /><searchLink fieldCode="DE" term="%22Particle+motion%22">Particle motion</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: We numerically investigate the lateral migration of deformable particles in rectangular-channel Poiseuille flow using a fictitious-domain method with distributed Lagrange multipliers. Compared with rigid particles, deformable particles experience significantly deformation-induced lift, driving them toward the channel corners. During migration, soft particles remain farther from the wall than stiff particles and, after reaching a corner, shift away from the corner along the bisector, whereas stiff particles attain stable equilibrium at the corner. In the case of cylindrical particles, migration is irregular and accompanied by stronger vorticity, enhanced cross-stream velocities, and continuous tumbling with pronounced deformation. By focusing on rectangular-channel geometry, this work reveals deformability-dependent corner migration and finite-offset equilibria that are absent in rigid-particle dynamics, and extends the analysis to deformable cylinders to expose shape-driven irregular migration and tumbling. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Particulate Science & Technology is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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    Identifiers:
      – Type: doi
        Value: 10.1080/02726351.2026.2616630
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      – Code: eng
        Text: English
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      Pagination:
        PageCount: 8
        StartPage: 621
    Subjects:
      – SubjectFull: Poiseuille flow
        Type: general
      – SubjectFull: Particle dynamics analysis
        Type: general
      – SubjectFull: River channels
        Type: general
      – SubjectFull: Particle motion
        Type: general
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      – TitleFull: Numerical study on the lateral migration of a deformable particle in rectangular channels.
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            NameFull: Zhang, Minkang
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            NameFull: Lin, Zhaowu
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              M: 05
              Text: 2026
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              Y: 2026
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