Flowmetering of shear-thinning non-Newtonian liquids

Owen, I. and Fyrippi, I. and Escudier, M. P. (2003) Flowmetering of shear-thinning non-Newtonian liquids. In: 4th ASME/JSME Joint Fluids Engineering Conference, 6 - 10 July 2003, Honolulu, Hawaii.

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Item Type:Conference or Workshop contribution (Paper)
Item Status:Live Archive

Abstract

This paper describes the results of an investigation into the performance of Coriolis, Electromagnetic, and clamp-on single-beam Ultrasonic flowmeters operating with non-Newtonian liquids. The flowmeters have been tested on Newtonian liquids (water and a glycerine/water solution) and non-Newtonian liquids (various polymer solutions and a synthetic clay) with flow rates that span the laminar and turbulent regions. It has been shown that the Coriolis flowmeter operates within the manufacturer's specification with non-Newtonian liquids. The Electromagnetic flowmeter showed a slight deviation during transition, typically 1. The Ultrasonic flowmeter showed very significant deviations during transition, typically 15. It has been clearly demonstrated that flowmeters which are sensitive to flow velocity profile are particularly unsuitable for use with non-Newtonian liquids. Not only do non-Newtonian liquids have different flow velocity profiles to Newtonian liquids, they also have different criteria for laminar/turbulent transition.

Additional Information:Conference Code:62091
Keywords:Flow measurement, Glycerol, Laminar flow, Magnetoelectric effects, Reynolds number, Turbulent flow, Ultrasonic flowmeters, Velocity measurement, Viscosity, Water, Yield stress, Shear-thinning, Turbulent regions, Non Newtonian liquids
Subjects:H Engineering > H100 General Engineering
H Engineering > H141 Fluid Mechanics
Divisions:College of Science > School of Engineering
ID Code:18264
Deposited On:14 Aug 2015 14:48

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