Numerical analysis of the electromagnetic flowmeter

The paper exploits the numerical solution of the flowmeter equation as an alternative to Bevir´s analytical method. The behaviour of flowmeters with point electrodes having short magnetic-field and insulating-liner lengths may be analysed for nonaxisymmetric rectlinear flow profiles. The numerical method can be more easily extended to situations which are complicated by flow profile, fluid properties and boundary conditions, but is less accurate than Bevir´s method because of the limitation of computer storage. The results obtained are compared with various exact solutions and are within about 1% of the exact values.