The Rectangular Elements for Electric Field Calculation by using Numerical Methods
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Abstract
This paper presents the application of linear rectangular elements and 12-DOF elements for electric field calculation by using surface charge method. The high voltage engineering problem which is used as a case study in this paper is electric field calculation on a dielectric spherical under the uniform electric field. The result from calculating the electric field on z-axis shows that when using linear rectangular elements. the average error of electric field is equal to 1.61%. while 12-DOF elements can reduce the average error to 0.72% or 55.3% reduction.
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References
[2] Boonchai Techaumnat, " 12-DOF Element for Electric Field Calculation by the Boundary Element Method", International Symposium on High Voltage Engineering, Netherlands, 2003.
[3] Z. Haznadar and Z. Stih,"Electromagnetic Fields,Wave and Numerical Methods', IOS Press,Netherlands, 2000.