University Research
Swimmer-Types of Optimum Surface-Driven Active Particles
Academic department
Department of Physics
Description
An optimal microswimmer with a given geometry has a surface velocity profile that minimises energy dissipation for a given swimming speed. An axisymmetric swimmer can be puller-, pusher- or neutral-type depending on the sign of the stresslet strength. We numerically investigate the type of optimal surface-driven active microswimmers using a minimum dissipation theorem for optimum microswimmers. We examine the hydrodynamic resistance and stresslet strength with nonlinear dependence on various deformation modes. Optimum microswimmers with fore-and-aft symmetry exhibit neutral-type behaviour. Asymmetrical geometries exhibit pusher-, puller- or neutral-type behaviour, depending on the dominant deformation mode and the nonlinear dependence of the stresslet for an optimum microswimmer on deformation mode and amplitude.
Publisher name
Cambridge University Press
Document Type
Article
Digital Object Identifier (DOI) Link
https://doi.org/10.1017/jfm.2025.58
Publication Date
4-10-2025
Publication Title
Journal of Fluid Mechanics
Volume
1009
Issue
R1
First Page
1
Last Page
10
Recommended Citation
Zayed, Rafe Md. Abu; Ardekani, Arezoo M.; and Nourhani, Amir, "Swimmer-Types of Optimum Surface-Driven Active Particles" (2025). University Research. 15.
https://ideaexchange.uakron.edu/university_research/15
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.