Taylor instabilities in colloidal crystals

M. Joanicot , P. Pieranski

Recently we have developed a Couette viscosimeter for studying the shearing of colloidal crystals. We report here that with increasing shear rate the colloidal crystal melts (for ωcrit) and above a critical shear rate, ωT0, Taylor instabilities develop. After stopping the shearing flow the suspension recrystallizes in a special texture which preserves the pattern of the Taylor rolls. This texture determines the configuration of Taylor instabilities in subsequent flow experiments.

Mots clés: colloids; flow instability; plastic flow; shear flow; suspensions; melting; colloidal crystals; Couette viscosimeter; shearing; critical shear rate; Taylor instabilities; suspension; Taylor rolls

Domaines: Articles anciens

M. Joanicot, P. Pieranski. Taylor instabilities in colloidal crystals. Journal de Physique Lettres, 1985, 46 (3), pp.91-96. ⟨10.1051/jphyslet:0198500460309100⟩. ⟨jpa-00232488⟩