A multi-scale description of orientation in simple shear flows of confined rod suspensions

Marta Perez (1) , Adrien Scheuer (1, 2) , Emmanuelle Abisset-Chavanne (1) , Francisco Chinesta (1) , Roland Keunings (2)

1 GeM - Institut de Recherche en Génie Civil et Mécanique
2 ICTEAM - Institute of Information and Communication Technologies, Electronics and Applied Mathematics

The multi-scale description of dilute or semi-dilute suspensions involving rods has been successfully accomplished and applied in many scenarios of industrial interest. Many processes involve, however, the flow of rod suspensions in very narrow gaps whose thickness is much smaller than the rod length. In these conditions, the evolution of rod orientation is expected to be affected by confinement effects. In the present work, we propose a multi-scale description of rod orientation in confined conditions and simple shear flows.

Mots clés: Multiscale modelling; Confined suspension flows; Jeffery’s equation

Domaines: Sciences de l'ingénieur [physics]

Marta Perez, Adrien Scheuer, Emmanuelle Abisset-Chavanne, Francisco Chinesta, Roland Keunings. A multi-scale description of orientation in simple shear flows of confined rod suspensions. Journal of Non-Newtonian Fluid Mechanics, 2016, 233, pp.61 - 74. ⟨10.1016/j.jnnfm.2016.01.011⟩. ⟨hal-01403860⟩