Reconstruction of Particle Concentration Distribution in Annular Couette Flow using Electrical Impedance Tomography

An inverse problem is solved to obtain the particle concentration profile in a suspension under an annular Couette flow using electrical impedance tomography (EIT). The finite element method (FEM) is employed for the forward problem and the regularized Newton-Raphson iterative method is used for the inverse problem. The continuous conductivity distribution is approximated as a piecewise constant function. To evaluate the robustness of the reconstruction algorithm, several test cases are considered. Accordingly, it was confirmed that the proposed algorithm can be used to reconstruct the particle concentration in a suspension.