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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2015-12-04
EM Fields Inside a Rotating Circular Hollow Dielectric Cylinder: Numerical Simulation in 2Ds
By
Mingtsu Ho,

    Professor Mingtsu Ho

    Wu-Feng Institute of Technology

    Taiwan 621

    Homepage

Li-An Tsai,

    Dr. Li-An Tsai

    Graduate School of Opto-Mechatronics and Materials

    Wu Feng University

    Taiwan

    Homepage

Cheng-Jr Tsai

    Dr. Cheng-Jr Tsai

    Graduate School of Opto-Mechatronics and Materials

    Wu Feng University

    Taiwan

    Homepage

Progress In Electromagnetics Research M, Vol. 45, 1-8, 2016
doi:10.2528/PIERM15102301 | Google Scholar

Abstract
The electromagnetic (EM) fields inside a rotating circular hollow dielectric cylinder were numerically calculated in two dimensions, and the numerical results were presented in this paper. The simulation was carried out by using the method of characteristics (MOC) for the solutions of the time-domain Maxwell equations with the application of the passing center swing back grids (PCSBG) technique in the modified O-type grid system. To illustrate the effects of the rotating hollow dielectric cylinder on the EM fields inside the cylinder, the cylinder may be set to rotate at impractically, extremely high angular frequencies. The use of PCSBG is to overcome the difficulty of the deformed grid cells resulting from the rotating object while the modified O-type grid system satisfies the requirement of minimum number of grid within the shortest wavelength of interest in the larger radius regions where the regular O-type grid fails. A Gaussian EM pulse is utilized as excitation source and set to illuminate the hollow cylinder which is made of either non-magnetic or impedance matching materials. For clear examinations the numerical results of EM fields at and around the cylinder center are exhibited. Several electric field distributions are also shown.
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Citation
Mingtsu Ho, Li-An Tsai, and Cheng-Jr Tsai, "EM Fields Inside a Rotating Circular Hollow Dielectric Cylinder: Numerical Simulation in 2Ds ," Progress In Electromagnetics Research M, Vol. 45, 1-8, 2016.
doi:10.2528/PIERM15102301
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