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International Society for Industrial Process Tomography

7th World Congress on Industrial Process Tomography

An Analytical Method for Reconstruction of Velocity Profiles using a Multi-Electrode Electromagnetic Flow Meter

L. E. Kollár, G. P. Lucas, Z. Zhang

School of Computing and Engineering, University of Huddersfield, Queensgate, Huddersfield, HD1 3DH, United Kingdom


An analytical method is developed for the reconstruction of velocity profiles using measured potential distributions obtained around the boundary of a multi-electrode electromagnetic flow meter. Since the solution is not unique, a procedure for choosing the optimum velocity profile is proposed for two-phase flows. The method was tested with a complex velocity profile obtained in a two-phase flow using computer simulations. The benefit of this method is that it provides not only a mean flow velocity, but a velocity distribution in a circular section as an analytical function of the spatial coordinates.

Keywords: Discrete Fourier Transform; electromagnetic flow measurement; potential distribution; velocity profile

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