Research on the Inertial Migration Characteristics of Bi-Disperse Particles in Channel Flow
The inertial focusing effect of particles in microchannels shows application potential in engineering practice. In order to study the mechanism of inertial migration of particles with different scales, the motion and distribution of two particles in Poiseuille flow are studied by the lattice Boltzma...
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MDPI AG
2021-09-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/11/19/8800 |
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| author | Dongmei Chen Jianzhong Lin Xiao Hu |
| author_facet | Dongmei Chen Jianzhong Lin Xiao Hu |
| author_sort | Dongmei Chen |
| collection | DOAJ |
| description | The inertial focusing effect of particles in microchannels shows application potential in engineering practice. In order to study the mechanism of inertial migration of particles with different scales, the motion and distribution of two particles in Poiseuille flow are studied by the lattice Boltzmann method. The effects of particle size ratio, Reynolds number, and blocking rate on particle inertial migration are analyzed. The results show that, at a high blocking rate, after the same scale particles are released at the same height of the channel, the spacing between the two particles increases monotonically, and the change in the initial spacing has little effect on the final spacing of inertial migration. For two different size particles, when the smaller particle is downstream, the particle spacing will always increase and cannot remain stable. When the larger particle is downstream, the particle spacing increases firstly and then decreases, and finally tends to be stable. |
| first_indexed | 2024-03-10T07:07:28Z |
| format | Article |
| id | doaj.art-340c47d77f864573913f514f91dd1e1f |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T07:07:28Z |
| publishDate | 2021-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-340c47d77f864573913f514f91dd1e1f2023-11-22T15:43:08ZengMDPI AGApplied Sciences2076-34172021-09-011119880010.3390/app11198800Research on the Inertial Migration Characteristics of Bi-Disperse Particles in Channel FlowDongmei Chen0Jianzhong Lin1Xiao Hu2State Key Laboratory of Fluid Power Transmission and Control, Zhejiang University, Hangzhou 310027, ChinaState Key Laboratory of Fluid Power Transmission and Control, Zhejiang University, Hangzhou 310027, ChinaState Key Laboratory of Fluid Power Transmission and Control, Zhejiang University, Hangzhou 310027, ChinaThe inertial focusing effect of particles in microchannels shows application potential in engineering practice. In order to study the mechanism of inertial migration of particles with different scales, the motion and distribution of two particles in Poiseuille flow are studied by the lattice Boltzmann method. The effects of particle size ratio, Reynolds number, and blocking rate on particle inertial migration are analyzed. The results show that, at a high blocking rate, after the same scale particles are released at the same height of the channel, the spacing between the two particles increases monotonically, and the change in the initial spacing has little effect on the final spacing of inertial migration. For two different size particles, when the smaller particle is downstream, the particle spacing will always increase and cannot remain stable. When the larger particle is downstream, the particle spacing increases firstly and then decreases, and finally tends to be stable.https://www.mdpi.com/2076-3417/11/19/8800microfluidicsinertial focusingtwo scale particleslattice Boltzmann method |
| spellingShingle | Dongmei Chen Jianzhong Lin Xiao Hu Research on the Inertial Migration Characteristics of Bi-Disperse Particles in Channel Flow Applied Sciences microfluidics inertial focusing two scale particles lattice Boltzmann method |
| title | Research on the Inertial Migration Characteristics of Bi-Disperse Particles in Channel Flow |
| title_full | Research on the Inertial Migration Characteristics of Bi-Disperse Particles in Channel Flow |
| title_fullStr | Research on the Inertial Migration Characteristics of Bi-Disperse Particles in Channel Flow |
| title_full_unstemmed | Research on the Inertial Migration Characteristics of Bi-Disperse Particles in Channel Flow |
| title_short | Research on the Inertial Migration Characteristics of Bi-Disperse Particles in Channel Flow |
| title_sort | research on the inertial migration characteristics of bi disperse particles in channel flow |
| topic | microfluidics inertial focusing two scale particles lattice Boltzmann method |
| url | https://www.mdpi.com/2076-3417/11/19/8800 |
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