Viscosity of multimodal suspensions predicted from solid fraction model for mixtures

G Roquier (1)

1 navier umr 8205 - Laboratoire Navier

Objectives: The model is able to predict the viscosity of a suspension of non colloidal rigid spherical particles in a Newtonian fluid. The theory is developed to highlight a new relation between relative viscosity and the solid volume fraction. A new version of the Compressible Packing Model (CPM), the 4-parameter CPM, is introduced to predict the solid fraction of maximally dense disordered packings of spherical particles. It is apt to account for the geometrical interactions between particles.

Mots clés: viscosity; model; 4-parameter CPM; packing; wall effect; loosening effect

Domaines: Sciences de l'ingénieur [physics]

G Roquier. Viscosity of multimodal suspensions predicted from solid fraction model for mixtures. AERC 2015 Nantes, Apr 2015, Nantes, France. 2015. ⟨hal-01275517⟩