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2011-05-12
Radiated EM Fields from a Rotating Current-Carrying Circular Cylinder: 2-Dimensional Numerical Simulation
By
Progress In Electromagnetics Research M, Vol. 18, 103-117, 2011
Abstract
The radiated electromagnetic (EM) fields from a rotating current-carrying circular cylinder were numerically simulated in two dimensions using the method of characteristics (MOC), and the numerical results were presented in this paper. To overcome the difficulty of the grid cell distortion caused by the rotating cylinder, the passing center swing back grids (PCSBG) technique is employed in collaboration of MOC in a modified O-type grid system. In order to have clear demonstration of radiated EM fields, the circular cylinder is set to be evenly divided in radial direction into an even number of slices that are made of perfect electric conductor (PEC) and non electric non magnetic material, alternatively. The surface current is assumed to have a Gaussian profile and to flow uniformly along the axial direction on the PEC surface. The radiated electric and magnetic fields around the cylinder were recorded as functions of time and reported along with the corresponding spectra which were obtained through proper Fourier transformation. Several field distributions over the whole computational space are also given.
Citation
Mingtsu Ho Fu-Shun Lai Yao-Han Chen Wen-Chiang Lin , "Radiated EM Fields from a Rotating Current-Carrying Circular Cylinder: 2-Dimensional Numerical Simulation," Progress In Electromagnetics Research M, Vol. 18, 103-117, 2011.
doi:10.2528/PIERM11030906
http://www.jpier.org/PIERM/pier.php?paper=11030906
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