Erratum for “Flow Rate Measurement of Non-Newtonian Fluids through Sharp Crested Notches”

Abstract

AbstractSharp crested notches, particularly rectangular and V-shaped ones, have been used to measure the flow rate of water in open channels for a long time. However, they have not been used to measure the flow rate of non-Newtonian fluids. The aim of this work is to explore the possibility of extending their range of application to non-Newtonian fluids, especially for rectangular and V-shaped notches. An experimental facility in the flow process research laboratory was used to perform the extensive tests reported herein. The notches and an in-line tube viscometer were calibrated using water. The in-line tube viscometer was used to determine the fluid rheology. Three different types of non-Newtonian fluids [namely, aqueous solution of carboxymethyl cellulose (CMC) solutions and water-based suspensions of kaolin and bentonite] were used as model test fluids. The experimental values of the coefficient of discharge (Cd) were plotted against three different definitions of the Reynolds number denoting differen...