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September 23, 2025Open Access

A general model for frictional contacts in colloidal systems

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Authors

KHK.R. HofmannJohannes Gutenberg University MainzKDKay-Robert DormannTechnical University of DarmstadtBLBenno LiebchenDarmstadt University of Applied Sciences

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Implication

Analysis demonstrates that frictional contacts impact collective behavior in colloidal systems, indicating improved models are necessary.

Key Points

  • Incorporating frictional contacts significantly alters the understanding of colloidal behavior under shear.
  • The model derives a new fluctuation-dissipation relation that applies to both linear and nonlinear interactions.
  • Utilizing dissipative particle dynamics captures thermal fluctuations in colloidal systems effectively.
  • Results show distinct effects of frictional interactions in Poiseuille flow and motility induced phase separation.

Cite This Study

Hofmann et al. (2025) studied this question.

synapsesocial.com/papers/68d473bb31b076d99fa6cbd0https://doi.org/10.48550/arxiv.2507.16388
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