The effect of self-propulsion on the particle stress in dilute suspensions of rod-like particles
| dc.contributor.author | Daghooghi, Mohsen | |
| dc.date.accessioned | 2020-04-29T20:08:08Z | |
| dc.date.available | 2020-04-29T20:08:08Z | |
| dc.date.issued | 2017 | |
| dc.description.abstract | We compared a dilute suspension of undulating rod-like particles (active suspension) with a similar one consisting of rigid rods (passive suspension) under shear flow. For the active suspension, a synchronised group of swimmers propel themselves forward by passing a travelling wave through their bodies while at the same time rotate due to planar background shear flow. Using a high resolution immersed body numerical simulations, we have shown that an active particle can exhibit complex dynamics, which is fundamentally different from a similar passive one. The orientation of the active particle consists of two separate oscillations: a low-frequency oscillation similar to the passive particle (determined by shear rate) and a high-frequency oscillation due to the body undulations. Nevertheless, different dynamics did not result in a major difference in rheological behaviour of the suspension. We found that the effective viscosity of the active suspension is equal to that of a passive one, i.e. self-propulsion did not change the viscosity of the suspension probably because of the high shear rate and inertia of our simulations. | en_US |
| dc.identifier.citation | Daghooghi, M., and Borazjani, I. ”The effect of self-propulsion on the particle stress in dilute suspensions of rod-like particles.” European Journal of Computational Mechanics 26.1-2 (2017): 61-77. | en_US |
| dc.identifier.uri | https://hdl.handle.net/10657.1/2312 | |
| dc.language.iso | en_US | en_US |
| dc.publisher | European Journal of Computational Mechanics | en_US |
| dc.subject | Rheology, active suspension, suspension, rod suspension, self-propulsion, active particle | en_US |
| dc.title | The effect of self-propulsion on the particle stress in dilute suspensions of rod-like particles | en_US |
| dc.type | Article | en_US |
Files
Original bundle
1 - 1 of 1
Loading...
- Name:
- The effect of undulations on the particle stress in dilute suspensions of rod-like particles.pdf
- Size:
- 8.28 KB
- Format:
- Adobe Portable Document Format
- Description:
License bundle
1 - 1 of 1
No Thumbnail Available
- Name:
- license.txt
- Size:
- 1.71 KB
- Format:
- Item-specific license agreed upon to submission
- Description: