PEREZ, Marta; SCHEUER, Adrien; ABISSET, Emmanuelle; AMMAR, Amine; CHINESTA, Francisco; KEUNINGS, Roland

doi:10.1007/s00161-018-0659-1

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PEREZ, Marta

SCHEUER, Adrien
Institut de Recherche en Génie Civil et Mécanique [GeM]

ABISSET, Emmanuelle

Institut de Recherche en Génie Civil et Mécanique [GeM]

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Continuum Mechanics and Thermodynamics. 2018

Springer Verlag

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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.< Réduire

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On the multi-scale description of micro-structured fluids composed of aggregating rods

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