Numerical simulation on weight function of electromagnetic flow meter

Jingzhuo Wang; Rongsheng Lu

doi:10.1117/12.716332

13 October 2006 Numerical simulation on weight function of electromagnetic flow meter

Jingzhuo Wang, Rongsheng Lu

Proceedings Volume 6280, Third International Symposium on Precision Mechanical Measurements; 628033 (2006) https://doi.org/10.1117/12.716332
Event: Third International Symposium on Precision Mechanical Measurements, 2006, Urumqi, China

Abstract

A new finite element procedure for the solution of the weight function, which represents the degree of the contribution of the fluid velocity to the signal in the cross section of a pipe of electromagnetic flow meter, at every point of the cross section of flow pipe of multiphase flow was presented. The solution of the weight function is important for the velocity profile inversion process. First, a numerical simulation model was built up with Femlab. Then a comparison study was investigated using the numerical simulation and Shercliff's weight function. It proved that the finite element methodology is correct for solving the weight function. Based on this result, a new kind of weight quantity solution scheme was carried out when the electrodes are located on the internal circumference of flow pipe and the connecting line of electrodes is parallel to the pipe diameter that is superposition with the coordinate axis. This methodology is effective to obtain the weight function value of electromagnetic flow meter and will be used in the invert reconstruction of the velocity profile imaging, which is significantly important for volumetric flow rate measurement.

Citation Download Citation

Jingzhuo Wang and Rongsheng Lu "Numerical simulation on weight function of electromagnetic flow meter", Proc. SPIE 6280, Third International Symposium on Precision Mechanical Measurements, 628033 (13 October 2006); https://doi.org/10.1117/12.716332

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