Numerically Solving Scattered Electromagnetic Fields from Rotating Objects Using Passing Center Swing Back Grids Technique: A Proposal

Ho, Mingtsu

doi:10.1163/156939309787604526

Cited by 8 publications

(6 citation statements)

References 17 publications

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“…Since relativistic force transformation equations are closely related with a variety of basic concepts, we believe that the present paper could be helpful for teaching special relativity and relativistic electrodynamics. Despite ramified applications of relativistic electrodynamics (cf, e.g., [16][17][18][19][20]), it seems that some of its basic concepts still need clarification.…”

Section: Introductionmentioning

confidence: 99%

Derivations of Relativistic Force Transformation Equations

Redžić

Davidović

Redzic

2011

Journal of Electromagnetic Waves and Applications

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Section: Introductionmentioning

confidence: 99%

Derivations of Relativistic Force Transformation Equations

Redžić

Davidović

Redzic

2011

Journal of Electromagnetic Waves and Applications

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“…Computational results generated by MOC were found to give reasonable trends in the following cases: the effects of medium conductivity on the EM fields propagating onto conducting dielectric half space [14] and the transmission of EM pulse through lossless non-uniform dielectric slab [15]. To overcome the grid distortion caused by the rotating cylinder, PCSBG was proposed based on the nature of MOC that all field components are defined at the cell center [16]. MOC in coalition with PCSBG was demonstrated to yield reasonable computational results in the scattered EM fields from rotating circular cylinder under the illumination of Gaussian EM pulse [17,18].…”

Section: Introductionmentioning

confidence: 94%

Em Fields Inside a Rotating Circular Hollow Dielectric Cylinder: Numerical Simulation in 2ds

Ho¹,

Tsai²,

Tsai³

2016

PIER M

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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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“…Our solution, which is based on the method developed in [9] and an ansatz leading to a problem with the Dirichlet boundary condition, appears to be new. Hopefully, it could contribute to the continuous interest in application-oriented relativistic electrodynamics (cf, e.g., [13][14][15][16][17][18][19][20][21]).…”

Section: A Classic Electromagnetostatic Problemmentioning

confidence: 99%

Electromagnetostatic Charges and Fields in a Rotating Conducting Sphere

Redžić¹

2010

PIER

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Charges and fields in a rotating non-magnetic conducting sphere under stationary conditions are investigated by using Minkowski's electrodynamics of moving media and the Lorentz force equation, taking into account the electric permittivity of the sphere. Starting from the assumption that the magnetic field inside the sphere is constant, exact solutions of the corresponding field equations are obtained in a first-order theory. However, it is found that there is a range of values of the sphere's net charge for which the physical interpretation of the results is difficult within a continuum model. Outside that range, our solution to the classic electromagnetostatic problem appears plausible.

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Numerically Solving Scattered Electromagnetic Fields from Rotating Objects Using Passing Center Swing Back Grids Technique: A Proposal

Cited by 8 publications

References 17 publications

Derivations of Relativistic Force Transformation Equations

Derivations of Relativistic Force Transformation Equations

Em Fields Inside a Rotating Circular Hollow Dielectric Cylinder: Numerical Simulation in 2ds

Electromagnetostatic Charges and Fields in a Rotating Conducting Sphere

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