Collect. Czech. Chem. Commun. 1993, 58, 1525-1533

Approximate Calculation of Fall Velocity of Spherical Particle in Generalized Newtonian Fluid in Creeping Region

Václav Dolejš

Department of Chemical Engineering, University of Chemical Technology, 532 10 Pardubice, Czech Republic


The paper gives a relation of the Rabinowitsch-Mooney type between the consistency variables τs and Ds which has been suggested, together with the force balance, for approximate calculation of the fall velocity of spherical particle in generalized Newtonian fluid. Its applicability to solutions characterized by the Ellis flow model has been experimentally proved.