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, 2022, 10 (11)
doi: 10.26083/tuprints-00015744
Artikel, Zweitveröffentlichung, Verlagsversion
Kurzbeschreibung (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.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2022 |
| Autor(en): | Kottmeier, Jonathan ; Wullenweber, Maike ; Blahout, Sebastian ; Hussong, Jeanette ; Kampen, Ingo ; Kwade, Arno ; Dietzel, Andreas |
| Art des Eintrags: | Zweitveröffentlichung |
| Titel: | Accelerated Particle Separation in a DLD Device at Re > 1 Investigated by Means of µPIV |
| Sprache: | Englisch |
| Publikationsjahr: | 2022 |
| Publikationsdatum der Erstveröffentlichung: | 2022 |
| Verlag: | MDPI |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Micromachines |
| Jahrgang/Volume einer Zeitschrift: | 10 |
| (Heft-)Nummer: | 11 |
| Kollation: | 18 Seiten |
| DOI: | 10.26083/tuprints-00015744 |
| URL / URN: | https://tuprints.ulb.tu-darmstadt.de/15744 |
| Zugehörige Links: | |
| Herkunft: | Zweitveröffentlichung |
| Kurzbeschreibung (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. |
| Freie Schlagworte: | microfluidics, deterministic lateral displacement, Reynolds number, particle image velocimetry, size-dependent fractionation |
| Status: | Verlagsversion |
| URN: | urn:nbn:de:tuda-tuprints-157446 |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften und Maschinenbau |
| Fachbereich(e)/-gebiet(e): | 16 Fachbereich Maschinenbau 16 Fachbereich Maschinenbau > Fachgebiet Strömungslehre und Aerodynamik (SLA) |
| Hinterlegungsdatum: | 09 Feb 2022 15:31 |
| Letzte Änderung: | 10 Feb 2022 06:45 |
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| Zugehörige Links: | |
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