Journal article
Dynamics of individual Brownian rods in a microchannel flow
- Abstract:
- We study the orientational dynamics of heavy silica microrods flowing through a microfluidic channel. Comparing experiments and Brownian dynamics simulations we identify different particle orbits, in particular in-plane tumbling behavior, which cannot be explained by classical Jeffery theory, and we relate this behavior to the rotational diffusion of the rods. By constructing the full, three-dimensional, orientation distribution, we describe the rod trajectories and quantify the persistence of Jeffery orbits using temporal correlation functions of the Jeffery constant. We find that our colloidal rods lose memory of their initial configuration in about a second, corresponding to half a Jeffery period.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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(Preview, Version of record, pdf, 2.8MB, Terms of use)
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- Publisher copy:
- 10.1039/c9sm00903e
Authors
- Publisher:
- Royal Society of Chemistry
- Journal:
- Soft Matter More from this journal
- Volume:
- 15
- Pages:
- 5810-5814
- Publication date:
- 2019-07-09
- Acceptance date:
- 2019-07-09
- DOI:
- EISSN:
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1744-6848
- ISSN:
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1744-683X
- Pubs id:
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pubs:1032349
- UUID:
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uuid:ae2a6e64-fff0-4657-9e07-a8ff9e332adc
- Local pid:
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pubs:1032349
- Source identifiers:
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1032349
- Deposit date:
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2019-07-16
Terms of use
- Copyright holder:
- The Royal Society of Chemistry
- Copyright date:
- 2019
- Notes:
- © The Royal Society of Chemistry 2019. This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence.
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