Non-Newtonian behaviour of flocculated suspensions

P. Mills

A theoretical model is proposed to describe the non-Newtonian behaviour of flocculated suspensions. This behaviour is supposed to originate from the immobilized fluid between the particles which forms flocs. A self-consistent field approximation is used to estimate the mean radius of flowing flocs in a simple shear field, and, as a consequence, the amount of immobilized fluid in flocs. Then a rheological law is proposed in which four fixed physical parameters are involved.

Mots clés: flocculation; non Newtonian flow; rheology; SCF calculations; suspensions; nonNewtonian behaviour; flocculated suspensions; immobilized fluid; self consistent field approximation; mean radius; flowing flocs; simple shear field; rheological law

Domaines: Articles anciens

P. Mills. Non-Newtonian behaviour of flocculated suspensions. Journal de Physique Lettres, 1985, 46 (7), pp.301-309. ⟨10.1051/jphyslet:01985004607030100⟩. ⟨jpa-00232515⟩