论文信息 - Rising velocity of a swarm of spherical bubbles in a power law non-Newtonian liquid

Rising velocity of a swarm of spherical bubbles in a power law non-Newtonian liquid

Previous work on the rise of a swarm of bubbles in non-Newtonian media has been reviewed. Variational principles have been combined with the Happel free surface cell model to obtain upper and lower bounds on the swarm velocities of bubbles rising slowly through power law liquids. The predictions presented herein encompass wide ranges of gas holdup and shear-thinning behaviour. On a fait une etude de la litterature sur la montee d'un agglomerat de bulles en milieu non newtonien. Des principes varationnels ont ete combines a un modele de cellule de surface libre de Happel dans le but d'obtenir des limites superieures et inferieures sur la vitesse d'agglomeration de bulles montant lentement dans des liquides de type loi de puissance. De ce fait, les predictions presentees couvrent une large gamme de retention de gaz et de comportement rheofluidisant.

R. P. Chhabra | R. Chhabra | S. Gummalam | S. Gummalam

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