Kottmeier, Jonathan ; Wullenweber, Maike ; Blahout, Sebastian ; Hussong, Jeanette ; Kampen, Ingo ; Kwade, Arno ; Dietzel, Andreas (2022)
Accelerated Particle Separation in a DLD Device at Re > 1 Investigated by Means of µPIV.
In: Micromachines, 10 (11)
doi: 10.3390/mi10110768
Article, Bibliographie
This is the latest version of this item.
Abstract
A pressure resistant and optically accessible deterministic lateral displacement (DLD) device was designed and microfabricated from silicon and glass for high-throughput fractionation of particles between 3.0 and 7.0 µm comprising array segments of varying tilt angles with a post size of 5 µm. The design was supported by computational fluid dynamic (CFD) simulations using OpenFOAM software. Simulations indicated a change in the critical particle diameter for fractionation at higher Reynolds numbers. This was experimentally confirmed by microparticle image velocimetry (µPIV) in the DLD device with tracer particles of 0.86 µm. At Reynolds numbers above 8 an asymmetric flow field pattern between posts could be observed. Furthermore, the new DLD device allowed successful fractionation of 2 µm and 5 µm fluorescent polystyrene particles at Re = 0.5–25.
| Item Type: | Article |
|---|---|
| Erschienen: | 2022 |
| Creators: | Kottmeier, Jonathan ; Wullenweber, Maike ; Blahout, Sebastian ; Hussong, Jeanette ; Kampen, Ingo ; Kwade, Arno ; Dietzel, Andreas |
| Type of entry: | Bibliographie |
| Title: | Accelerated Particle Separation in a DLD Device at Re > 1 Investigated by Means of µPIV |
| Language: | English |
| Date: | 2022 |
| Publisher: | MDPI |
| Journal or Publication Title: | Micromachines |
| Volume of the journal: | 10 |
| Issue Number: | 11 |
| Collation: | 18 Seiten |
| DOI: | 10.3390/mi10110768 |
| Corresponding Links: | |
| Abstract: | A pressure resistant and optically accessible deterministic lateral displacement (DLD) device was designed and microfabricated from silicon and glass for high-throughput fractionation of particles between 3.0 and 7.0 µm comprising array segments of varying tilt angles with a post size of 5 µm. The design was supported by computational fluid dynamic (CFD) simulations using OpenFOAM software. Simulations indicated a change in the critical particle diameter for fractionation at higher Reynolds numbers. This was experimentally confirmed by microparticle image velocimetry (µPIV) in the DLD device with tracer particles of 0.86 µm. At Reynolds numbers above 8 an asymmetric flow field pattern between posts could be observed. Furthermore, the new DLD device allowed successful fractionation of 2 µm and 5 µm fluorescent polystyrene particles at Re = 0.5–25. |
| Uncontrolled Keywords: | microfluidics, deterministic lateral displacement, Reynolds number, particle image velocimetry, size-dependent fractionation |
| Classification DDC: | 600 Technology, medicine, applied sciences > 620 Engineering and machine engineering |
| Divisions: | 16 Department of Mechanical Engineering 16 Department of Mechanical Engineering > Fluid Mechanics and Aerodynamics (SLA) |
| Date Deposited: | 02 Aug 2024 12:37 |
| Last Modified: | 02 Aug 2024 12:37 |
| PPN: | |
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| Suche nach Titel in: | TUfind oder in Google |
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Accelerated Particle Separation in a DLD Device at Re > 1 Investigated by Means of µPIV. (deposited 09 Feb 2022 15:31)
- Accelerated Particle Separation in a DLD Device at Re > 1 Investigated by Means of µPIV. (deposited 02 Aug 2024 12:37) [Currently Displayed]
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