Skip to main content
Article
Apparent wall slip velocity coefficients in concentrated suspensions of non-colloidal particles
Polymer Engineering Faculty Research
  • Sadhan Jana, The University of Akron
Document Type
Article
Publication Date
10-1-1995
Abstract

The apparent wall slip velocity coefficient of concentrated monodisperse suspensions of 90 μm PMMA particles in a viscous Newtonian fluid was determined experimentally in a narrow gap Couette device by measuring the particle velocities across the gap using a laser doppler anemometer system and then extrapolating the results to the two walls. The slip coefficients thereby obtained were found to be insensitive to the magnitude of the applied shear rate and to equal, approximately, λ/8 for particle concentrations φ in the range 0.45≤φ≤0.52, where λ refers to the relative effective viscosity of the suspension with respect to that of the pure fluid.

Citation Information
Sadhan Jana. "Apparent wall slip velocity coefficients in concentrated suspensions of non-colloidal particles" Vol. 39 (1995) p. 1123 - 1132
Available at: http://works.bepress.com/sadhan_jana/53/