Measurements of the Angular Velocity Distribution in Miscible Liquid Mixing Using Electrical Resistance Tomography

M. Wang, Wuliang Yin

School of Process, Environmental and Materials Engineering University of Leeds, Leeds LS2 9JT, UK

E-mail: minmwa@leeds.ac.uk

ABSTRACT

Abstract: As electrical resistance tomography can detect local changes in conductivity, the technique can be used to study the unsteady mixing dynamics of miscible liquids if the fluids to be blended have different conductivities. This paper represents a preliminary study involving injecting a small quantity of strong brine solution into water, tomographic measuring from a peripheral electrode array and reconstructing the conductivity flied from these measurements and implementing angular velocities using an auto-correlation technique.

Keywords concentration, angular velocity, electrical resistance tomography, auto-correlation