Determining the flow characteristics of a power law liquid

Abstract

An experiment was developed which used the easily understood macroscopic energy balance to obtain the experimental results. This experimental set-up was developed to study the decrease of the apparent viscosity of a 0.07% aqueous solution of a sodium salt of carboxymethyl cellulose (Na-CMC) with increasing shear rates. The mass-average velocity of the solution inside the capillary was obtained using the continuity equation. The additional experimental data was obtained easily after the addition of sodium chloride to the CMC solution, to study the effect of molecular concentration of the polyelectrolyte.