PreprintCC0arXiv
Translational and rotational irreversibility in cyclically sheared colloidal suspensions
Abstract
We investigate the translational and rotational dynamics of cyclically sheared suspensions over a broad range of particle concentrations. The transition to an irreversible state is studied using a custom confocal-rheometer and colloidal particles synthesized with chemically identical smooth and lobed surfaces. The particle trajectories and rotations are tracked in three dimensions to reveal enhanced effective diffusivities that exhibit flow induced anisotropy that depends on particle concentration and particle morphology. We show that within the irreversible state, the shear induced anisotropy is determined by interparticle friction and interlocking mechanisms that promote mixing and enforce rotational isotropy.
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BibTeX
@misc{walker2026translational,
title = {{Translational and rotational irreversibility in cyclically sheared colloidal suspensions}},
author = {Austin H. Walker and Jeffrey S. Urbach and Daniel L. Blair},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2610.06172},
eprint = {2610.06172},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2610.06172},
note = {CC0},
}
RIS
TY - UNPB
TI - Translational and rotational irreversibility in cyclically sheared colloidal suspensions
AU - Austin H. Walker
AU - Jeffrey S. Urbach
AU - Daniel L. Blair
PY - 2026
DA - 2026/10/05
PB - arXiv
DO - 10.48550/arxiv.2610.06172
UR - https://arxiv.org/abs/2610.06172
AB - We investigate the translational and rotational dynamics of cyclically sheared suspensions over a broad range of particle concentrations. The transition to an irreversible state is studied using a custom confocal-rheometer and colloidal particles synthesized with chemically identical smooth and lobed surfaces. The particle trajectories and rotations are tracked in three dimensions to reveal enhanced effective diffusivities that exhibit flow induced anisotropy that depends on particle concentration and particle morphology. We show that within the irreversible state, the shear induced anisotropy is determined by interparticle friction and interlocking mechanisms that promote mixing and enforce rotational isotropy.
ER -