On the multi-scale description of micro-structured fluids composed of aggregating rods
(2019) Continuum Mechanics and Thermodynamics : analysis of complex materials and judicious evaluation of the environment — Vol. 31, n° 4, p. 955-967 (2019)
Files
PP_CMT-2018-PEREZ.pdf
Open Access - Adobe PDF
- 1.27 MB
Details
- Authors
- Abstract
- When addressing the flow of concentrated suspensions composed of rods, dense clusters are observed. Thus, the adequate modelling and simulation of such a flow requires addressing the kinematics of these dense clusters and their impact on the flow in which they are immersed. In a former work, we addressed a first modelling framework of these clusters, assumed so dense that they were considered rigid and their kinematics (flow-induced rotation) were totally defined by a symmetric tensor c with unit trace representing the cluster conformation. Then, the rigid nature of the clusters was relaxed, assuming them deformable, and a model giving the evolution of both the cluster shape and its microstructural orientation descriptor (the so-called shape and orientation tensors) was proposed. This paper compares the predictions coming from those models with finer-scale discrete simulations inspired from molecular dynamics modelling.
- Affiliations
Citations
Perez, M., Scheuer, A., Abisset-Chavanne, E., Ammar, A., Chinesta, F., & Keunings, R. (2019). On the multi-scale description of micro-structured fluids composed of aggregating rods. Continuum Mechanics and Thermodynamics : analysis of complex materials and judicious evaluation of the environment, 31(4), 955-967. https://doi.org/10.1007/s00161-018-0659-1 (Original work published 2019)