| Issue |
EPJ Web Conf.
Volume 340, 2025
Powders & Grains 2025 – 10th International Conference on Micromechanics on Granular Media
|
|
|---|---|---|
| Article Number | 02001 | |
| Number of page(s) | 3 | |
| Section | Rheology and Constitutive Modelling | |
| DOI | https://doi.org/10.1051/epjconf/202534002001 | |
| Published online | 01 December 2025 | |
https://doi.org/10.1051/epjconf/202534002001
Rheology of dense suspensions of non-Brownian soft particles across flow regimes
1 Aix-Marseille Université, CNRS, IUSTI, Marseille, France
2 Institute of Urban and Industrial Water Management, TU Dresden, Dresden, Germany
3 Université Paris Cité, CNRS, MSC, Paris, France
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Published online: 1 December 2025
Abstract
This study investigates the rheological behavior of soft spherical particles across the jamming transition and within both viscous and inertial flow regimes. We extend the established granular rheology for hard sphere suspensions to develop a soft granular rheology by adjusting the critical volume fraction and friction coefficient to account for pressure variations, and by incorporating the combined effiects of viscous and inertial stress scales. This framework effectively characterizes dense suspensions across a broad spectrum of sizes and flow conditions, from colloidal to granular. The implications for suspension flow dynamics and sediment transport processes are also explored.
© The Authors, published by EDP Sciences, 2025
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