Numerical simulation and verification of weight function of electromagnetic flow meter with non-insulation surface pipe

摘要

Weight function of electromagnetic flow meter with non-insulation pipe is numerical simulated and verified. Weight function is very important for solution of flow velocity of distribution. In this paper, finite element method (FEM) is used for solving the weight function of this novel electromagnetic flow meter. First of all, numerical simulation model of electromagnetic flow meter with non-insulation surface pipe is built by the Comsol Multiphysics software. Boundary is researched. Secondly, weight values of different kinds of non-insulation pipe electromagnetic flow meters are analysis. These non-insulation pipe electromagnetic flow meters have different conductivity surface pipes and thicknesses. At lastly, induction electromotive force of electrodes is proved in the result of this paper. The result of distribution of virtual current is the same as weight value distribution has been proved under situation of uniform magnetic field. This method can be used in analysis different weight functions in other fields like prolusion of surface pipes and electrode poles of electromagnetic flow meter. It is very meaningful in medical and industrial field.