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Journal articles on the topic 'Numerical methods in electromagnetics'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Razmjoo, Hooman, and Masoud Movahhedi. "Unconditionally stable improved meshless methods for electromagnetic time-domain modeling." COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering 33, no. 1/2 (2013): 463–82. http://dx.doi.org/10.1108/compel-12-2012-0368.

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Purpose – In this paper, a modified meshless method, as one of the numerical techniques that has recently emerged in the area of computational electromagnetics, is extended to solving time-domain wave equation. The paper aims to discuss these issues. Design/methodology/approach – In space domain, the fields at the collocation points are expanded into a series of new Shepard's functions which have been suggested recently and are treated with a meshless method procedure. For time discretization of the second-order time-derivative, two finite-difference schemes, i.e. backward difference and Newma

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2

Anastassiu, Hristos T. "Special Issue “Numerical and Analytical Methods in Electromagnetics”." Applied Sciences 10, no. 20 (2020): 7242. http://dx.doi.org/10.3390/app10207242.

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Like all branches of physics and engineering, electromagnetics relies on mathematical methods for modeling, simulation, and design procedures in all of its aspects (radiation, propagation, scattering, imaging, etc [...]

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3

Hafner, C. V. "On the design of numerical methods (computational electromagnetics)." IEEE Antennas and Propagation Magazine 35, no. 4 (1993): 13–21. http://dx.doi.org/10.1109/74.229841.

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4

Ji, Ai Guo, and De Shui Liu. "Application of Matlab to write a Script for HFSS’s Eigenmode Solution of Circular Cavity." Applied Mechanics and Materials 385-386 (August 2013): 1240–43. http://dx.doi.org/10.4028/www.scientific.net/amm.385-386.1240.

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With the rapid development of modern electromagnetics, a lot of electromagnetic field numerical methods are maturing. 3D electromagnetic simulation software HFSS has two solutions including incentive solving and eigenmode solving. When solving the calculation of the structure of eigenmodes or resonant type can use eigenmode solver. Using matlab generate HFSS scripting language-based program to set eigenmode solution is a very convenient and very innovative approach. The program on a circular cavity modeling and eigenmode solution set simulation results meet the design requirements.

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Aniserowicz, K. "Comparison of Different Numerical Methods for Solving Boundary-Value Problems in Electromagnetics." IEEE Transactions on Education 47, no. 2 (2004): 241–46. http://dx.doi.org/10.1109/te.2004.825222.

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6

Huang, Z. X., X. L. Wu, W. E. I. Sha, and B. Wu. "Optimized Operator-Splitting Methods in Numerical Integration of Maxwell's Equations." International Journal of Antennas and Propagation 2012 (2012): 1–8. http://dx.doi.org/10.1155/2012/956431.

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Optimized operator splitting methods for numerical integration of the time domain Maxwell's equations in computational electromagnetics (CEM) are proposed for the first time. The methods are based on splitting the time domain evolution operator of Maxwell's equations into suboperators, and corresponding time coefficients are obtained by reducing the norm of truncation terms to a minimum. The general high-order staggered finite difference is introduced for discretizing the three-dimensional curl operator in the spatial domain. The detail of the schemes and explicit iterated formulas are also in

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7

Dhamodaran, M., and R. Dhanasekaran. "Comparison of Computational Electromagnetics for Electrostatic Analysis." International Journal of Energy Optimization and Engineering 3, no. 3 (2014): 86–100. http://dx.doi.org/10.4018/ijeoe.2014070106.

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This paper presents comparative studies on different numerical methods like method of moments (MOM), Boundary Element Method (BEM), Finite element method (FEM), Finite difference method (FDM), Charge Simulation method (CSM) and Surface charge method. The evaluation of the capacitance of various structures having different geometrical shapes is importance to study the behavior of electrostatic charge analysis. The MOM is based upon the transformation of an integral equation, into a matrix equation by employing expansion of the unknown in terms of known basis functions with unknown coefficients

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Kahnert, F. Michael. "Numerical methods in electromagnetic scattering theory." Journal of Quantitative Spectroscopy and Radiative Transfer 79-80 (June 2003): 775–824. http://dx.doi.org/10.1016/s0022-4073(02)00321-7.

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9

Marklein, R., K. J. Langenberg, K. Mayer, et al. "Recent Applications and Advances of Numerical Modeling and Wavefield Inversion in Nondestructive Testing." Advances in Radio Science 3 (May 12, 2005): 167–74. http://dx.doi.org/10.5194/ars-3-167-2005.

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Abstract. This paper presents recent advances and future challenges of the application of different linear and nonlinear inversion algorithms in acoustics, electromagnetics, and elastodynamics. The presented material can be understood as an extension of our previous work on this topic. The inversion methods considered in this presentation vary from linear schemes, like the Synthetic Aperture Radar (SAR) applied electromagnetics and the Synthetic Aperture Focussing Technique (SAFT) as its counterpart in ultrasonics, and the linearized Diffraction Tomography (DT), to nonlinear schemes, like the

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10

Gleim, Tobias, and Detlef Kuhl. "High-Order Numerical Methods for Electromagnetic Induction." PAMM 17, no. 1 (2017): 509–10. http://dx.doi.org/10.1002/pamm.201710224.

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11

Guo, Han, Jun Hu, Hanru Shao, and Zaiping Nie. "Hierarchical Matrices Method and Its Application in Electromagnetic Integral Equations." International Journal of Antennas and Propagation 2012 (2012): 1–9. http://dx.doi.org/10.1155/2012/756259.

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Hierarchical (H-) matrices method is a general mathematical framework providing a highly compact representation and efficient numerical arithmetic. When applied in integral-equation- (IE-) based computational electromagnetics,H-matrices can be regarded as a fast algorithm; therefore, both the CPU time and memory requirement are reduced significantly. Its kernel independent feature also makes it suitable for any kind of integral equation. To solveH-matrices system, Krylov iteration methods can be employed with appropriate preconditioners, and direct solvers based on the hierarchical structure o

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12

Micu, Dan D., Andrei Ceclan, Iosif Lingvay, and Emil Simion. "Numerical interpolation methods applied in electromagnetic interference problems." Renewable Energy and Power Quality Journal 1, no. 06 (2008): 282–86. http://dx.doi.org/10.24084/repqj06.283.

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13

Voyer, D., F. Musy, L. Nicolas, and R. Perrussel. "Probabilistic methods applied to 2D electromagnetic numerical dosimetry." COMPEL - The international journal for computation and mathematics in electrical and electronic engineering 27, no. 3 (2008): 651–67. http://dx.doi.org/10.1108/03321640810861098.

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14

Liu, Zhiwei, Dan Tang, Zhanyang Zhang, Yueyuan Zhang, Xiaoli Wang, and Shunli Jie. "Combination of MLFMA and ACA to Accelerate Computation of Scattering from Underground Targets." International Journal of Antennas and Propagation 2019 (January 23, 2019): 1–9. http://dx.doi.org/10.1155/2019/3456871.

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Electromagnetic nondestructive evaluation of underground targets is of great significance for the safety of urban construction. Based on the accurate and efficient simulation of scattering, we can detect the underground targets successfully. As one of the most popular numerical methods in electromagnetics, surface integral equations solved by method of moments (MoM) are used to simulate the scattering from underground targets in this paper. The integral equation is discretized by RWG basis and Galerkin testing. Multilevel fast multipole algorithm (MLFMA) is used to decrease the computation com

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15

Bouillault, F., and A. Razek. "Hybrid numerical methods for movement consideration in electromagnetic systems." IEEE Transactions on Magnetics 24, no. 1 (1988): 259–61. http://dx.doi.org/10.1109/20.43906.

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16

Niu, Kaikun, Ping Li, Zhixiang Huang, Li Jun Jiang, and Hakan Bagci. "Numerical Methods for Electromagnetic Modeling of Graphene: A Review." IEEE Journal on Multiscale and Multiphysics Computational Techniques 5 (2020): 44–58. http://dx.doi.org/10.1109/jmmct.2020.2983336.

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17

Pellerin, Louise, Jeffrey M. Johnston, and Gerald W. Hohmann. "A numerical evaluation of electromagnetic methods in geothermal exploration." GEOPHYSICS 61, no. 1 (1996): 121–30. http://dx.doi.org/10.1190/1.1443931.

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The size and low resistivity of the clay cap associated with a geothermal system create a target well suited for electromagnetic (EM) methods and also make electrical detection of the underlying geothermal reservoir a challenge. Using 3-D numerical models, we evaluate four EM techniques for use in geothermal exploration: magnetotellurics (MT), controlled‐source audio magnetotellurics (CSAMT), long‐offset time‐domain EM (LOTEM), and short‐offset time‐domain EM (TEM). Our results show that all of these techniques can delineate the clay cap, but none can be said to unequivocally detect the reserv

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18

da Silva, Rodrigo Cleber, Sergio Kurokawa, Afonso Jose, and Jose Pissolato. "Integration Methods Used in Numerical Simulations of Transient Electromagnetic." IEEE Latin America Transactions 9, no. 7 (2011): 1060–65. http://dx.doi.org/10.1109/tla.2011.6129703.

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19

Giordano, Domenico, Luca Zilberti, Michele Borsero, Roberto Forastiere, and Wencui Wang. "Validation of numerical methods for electromagnetic dosimetry through near-field measurements." ACTA IMEKO 4, no. 1 (2015): 90. http://dx.doi.org/10.21014/acta_imeko.v4i1.169.

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This paper describes the arrangement of a first experimental set-up which allows the comparison between the measurement of the electromagnetic field quantities induced inside a simple cylindrical phantom and the same quantities estimated numerically through a boundary element method. The reliability of the numerical method has been tested at 64 MHz, the Larmor frequency associated to the magnetic resonance imaging devices with an isocenter magnetic field of 1.5 T. To assess its robustness, the comparison is also performed by introducing, inside the phantom, a metallic non magnetic element, whi

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20

Shao, Yu, Jing Jing Yang, and Ming Huang. "A Review of Computational Electromagnetic Methods for Graphene Modeling." International Journal of Antennas and Propagation 2016 (2016): 1–9. http://dx.doi.org/10.1155/2016/7478621.

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Graphene is a very promising optoelectronic material and has gained more and more attention. To analyze its electromagnetic properties, several numerical methods have been developed for graphene simulation. In this paper, a review of application of graphene in electronic and photonic device is provided, as well as some widely used computational electromagnetic algorithms for graphene modeling. The advantages and drawbacks of each method are discussed and numerical examples of these methods are given to illustrate their performance and application.

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21

Freschi, Fabio, Luca Giaccone, and Maurizio Repetto. "Educational value of the algebraic numerical methods in electromagnetism." COMPEL - The international journal for computation and mathematics in electrical and electronic engineering 27, no. 6 (2008): 1343–57. http://dx.doi.org/10.1108/03321640810905828.

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22

Gawrylczyk, Konstanty. "Electromagnetic methods in nondestructive testing of materials." Facta universitatis - series: Electronics and Energetics 16, no. 1 (2003): 1–23. http://dx.doi.org/10.2298/fuee0301001g.

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The article deals with progress in electromagnetic methods used for quality evaluation of conducting materials. The term "electromagnetic methods" covers the following areas: magneto-inductive methods, magnetic leakage flux probe method, magnetometer principle and eddy-current methods. For the aim of numerical cracks recognition the sensitivity analysis with finite elements was shown.

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23

Tan, Sai, Junyong Lu, Xiao Zhang, Bai Li, Yongsheng Zhang, and Yuanzhi Jiang. "The Numerical Analysis Methods of Electromagnetic Rail Launcher With Motion." IEEE Transactions on Plasma Science 44, no. 12 (2016): 3417–23. http://dx.doi.org/10.1109/tps.2016.2605164.

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24

Hugonin, J. P., M. Besbes, and P. Lalanne. "Hybridization of electromagnetic numerical methods through the G-matrix algorithm." Optics Letters 33, no. 14 (2008): 1590. http://dx.doi.org/10.1364/ol.33.001590.

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25

Kahnert, Andreas. "NUMERICAL METHODS FOR CALCULATING THE MECHANICAL BEHAVIOR OF ELECTROMAGNETIC DEVICES." COMPEL - The international journal for computation and mathematics in electrical and electronic engineering 13, no. 1 (1994): 83–86. http://dx.doi.org/10.1108/eb051846.

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26

Zimbardo, G., A. Greco, A. L. Taktakishvili, P. Veltri, and L. M. Zelenyi. "Magnetic turbulence and particle dynamics in the Earth’s magnetotail." Annales Geophysicae 21, no. 9 (2003): 1947–53. http://dx.doi.org/10.5194/angeo-21-1947-2003.

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Abstract. The influence of magnetic turbulence in the near-Earth magnetotail on ion motion is investigated by numerical simulation. The magnetotail current sheet is modelled as a magnetic field reversal with a normal magnetic field com-ponent Bn , plus a three-dimensional spectrum of magnetic fluctuations dB which represents the observed magnetic turbulence. The dawn-dusk electric field Ey is also considered. A test particle simulation is performed using different values of Bn and of the fluctuation level dB/B0. We show that when the magnetic fluctuations are taken into account, the particle d

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27

Song, T. X., and C. Wang. "Two Numerical Methods for Calculating Electromagnetic Fields Radiated from Nature Lightining." Journal of Electromagnetic Waves and Applications 19, no. 4 (2005): 513–28. http://dx.doi.org/10.1163/1569393053303901.

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28

Baba, Y., and M. Ishii. "Numerical electromagnetic field analysis on measuring methods of tower surge impedance." IEEE Transactions on Power Delivery 14, no. 2 (1999): 630–35. http://dx.doi.org/10.1109/61.754110.

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29

Srinivasan, Bhuvana, Ammar Hakim, and Uri Shumlak. "Numerical Methods for Two-Fluid Dispersive Fast MHD Phenomena." Communications in Computational Physics 10, no. 1 (2011): 183–215. http://dx.doi.org/10.4208/cicp.230909.020910a.

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AbstractThe finite volume wave propagation method and the finite element Runge-Kutta discontinuous Galerkin (RKDG) method are studied for applications to balance laws describing plasma fluids. The plasma fluid equations explored are dispersive and not dissipative. The physical dispersion introduced through the source terms leads to the wide variety of plasma waves. The dispersive nature of the plasma fluid equations explored separates the work in this paper from previous publications. The linearized Euler equations with dispersive source terms are used as a model equation system to compare the

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30

Bartel, D. C., and A. Becker. "Spectral analysis in airborne electromagnetics." GEOPHYSICS 55, no. 10 (1990): 1338–46. http://dx.doi.org/10.1190/1.1442781.

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Interpretation of airborne electromagnetic (AEM) data is mainly concerned with determining the position, dip, and quality (or conductance) of an anomalous geologic feature. A new method of interpretation using spectral analysis has certain advantages over conventional methods. It is specifically applied to the interpretation of AEM anomalies observed with the INPUT1 time‐domain electromagnetic system that are related to thin rectangular conductive plates. Profiles of field data are converted to the wavenumber domain by applying a Fourier transform. Because the amplitude spectrum varies exponen

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31

Taran, Vladimir N., Maxim V. Shevlyugin, and Aleksey V. Shandybin. "The accuracy of numerical methods for the analysis of electrostatic fields." Transportation Systems and Technology 7, no. 1 (2021): 59–70. http://dx.doi.org/10.17816/transsyst20217159-70.

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Aim: Estimation of the accuracy of the numerical method relative to the analytical solution. Methods: This article reports on studies of the accuracy of numerical calculations based on the finite element method. The variational scheme of the method is considered. Results: The dependences of errors on the number of simplexes used are obtained and analyzed. The authors noted ways to further improve accuracy. Conclusion: The article gives recommendations on the possible application of the finite element method in solving problems of calculating the electromagnetic fields of real

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32

Chappell, David J., Gregor Tanner, Dominik Löchel, and Niels Søndergaard. "Discrete flow mapping: transport of phase space densities on triangulated surfaces." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 469, no. 2155 (2013): 20130153. http://dx.doi.org/10.1098/rspa.2013.0153.

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Energy distributions of high-frequency linear wave fields are often modelled in terms of flow or transport equations with ray dynamics given by a Hamiltonian vector field in phase space. Applications arise in underwater and room acoustics, vibroacoustics, seismology, electromagnetics and quantum mechanics. Related flow problems based on general conservation laws are used, for example, in weather forecasting or in molecular dynamics simulations. Solutions to these flow equations are often large-scale, complex and high-dimensional, leading to formidable challenges for numerical approximation met

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33

ANEMOGIANNIS, EMMANUEL, ELIAS N. GLYTSIS, and THOMAS K. GAYLORD. "QUANTUM STATE ENGINEERING BASED ON ELECTROMAGNETIC ANALOGIES AND NUMERICAL METHODS FOR SEMICONDUCTOR INTERSUBBAND LASERS." International Journal of High Speed Electronics and Systems 09, no. 04 (1998): 1235–64. http://dx.doi.org/10.1142/s0129156498000488.

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The design of semiconductor intersubband lasers using quantum state engineering based on electromagnetic analogies is a relatively new area. There has been little systematic effort in this direction as yet. The use of these analogies allows laser researchers to apply tools and methodologies found in the mature field of electromagnetic optics. The purpose of this paper is to describe the procedures by which intersubband quantum-well semiconductor lasers (or detectores) may be designed using these methodologies.

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34

Rodriguez-Ignacio, Hugo, and Xose M. Lopez-Fernandez. "Numerical verification of Turowski’s coefficient." COMPEL - The international journal for computation and mathematics in electrical and electronic engineering 35, no. 6 (2016): 1965–72. http://dx.doi.org/10.1108/compel-02-2016-0054.

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Purpose The purpose of this paper is the numerical verification of the linearization coefficient ap proposed by Turowski for the calculation of the electromagnetic field distribution and therefore the stray losses inside magnetically saturated solid steel conductors. Design/methodology/approach The numerical verification is performed on a case study consisting of a simple current conductor sheet parallel to a solid steel plate. Numerical computations are compared with analytical calculations with and without inclusion of the semi-empirical Turowski’s coefficient. Findings Results confirm a goo

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35

Mitra, Dipankar, Sukrith Dev, Monica S. Allen, Jeffery W. Allen, and Benjamin D. Braaten. "Coordinate Transformations-Based Antenna Elements Embedded in a Metamaterial Shell with Scanning Capabilities." Electronics 10, no. 9 (2021): 1081. http://dx.doi.org/10.3390/electronics10091081.

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In this work transformation electromagnetics/optics (TE/TO) were employed to realize a non-homogeneous, anisotropic material-embedded beam-steerer using both a single antenna element and an antenna array without phase control circuitry. Initially, through theory and validation with numerical simulations it is shown that beam-steering can be achieved in an arbitrary direction by enclosing a single antenna element within the transformation media. Then, this was followed by an array with fixed voltages and equal phases enclosed by transformation media. This enclosed array was scanned, and the pro

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36

Taflove, Allen. "Preface for the special issue on numerical methods for electromagnetic wave interactions." Wave Motion 10, no. 6 (1988): 491–92. http://dx.doi.org/10.1016/0165-2125(88)90009-1.

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37

Huynen, Isabelle, and Benoit Stockbroeckx. "Variational principles compete with numerical iterative methods for analyzing distributed electromagnetic structures." Annales Des Télécommunications 53, no. 3-4 (1998): 95–103. http://dx.doi.org/10.1007/bf02998567.

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38

Nunn, D., J. Manninen, T. Turunen, V. Trakhtengerts, and N. Erokhin. "On the nonlinear triggering of VLF emissions by power line harmonic radiation." Annales Geophysicae 17, no. 1 (1999): 79–94. http://dx.doi.org/10.1007/s00585-999-0079-4.

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Abstract. VLF ground data from Porojarvi in N. Finland has been presented. Spectrograms reveal frequent occurrence of power line harmonic radiation (PLHR), originating from the Finnish power system and from heavy industrial plant. The radiation is seen to penetrate the magnetosphere since numerous occurrences of PLHR triggered emissions are seen. Risers predominate but fallers and hooks are also observed. A well-established 1D Vlasov simulation code has been used to simulate these emissions, using plausible magnetospheric data for a range of L values from L = 4 to L = 5.5. The code is able to

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LIU, NIAN, CHI XIE, LI BO, and KE-XUN JIANG. "STUDY OF ELECTROMAGNETIC FIELD SIMULATION USING TWO KINDS OF FINITE ELEMENT METHODS." Modern Physics Letters B 20, no. 19 (2006): 1173–81. http://dx.doi.org/10.1142/s0217984906011293.

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The simulation comparison research of two types of high-order triangular finite element methods for the numerical simulation of two-dimensional nonlinear electromagnetic fields is presented in this paper. The comparative study has been done in many ways, such as the accuracy of computation, the computation time and computer storage requirement. The comparative results obtained in this paper are very useful to calculation methods used in electromagnetic fields in modern physics fields.

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40

Christensen, Niels B. "Sensitivity functions of transient electromagnetic methods." GEOPHYSICS 79, no. 4 (2014): E167—E182. http://dx.doi.org/10.1190/geo2013-0364.1.

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Any geophysical measurement is a filter through which the distribution of a certain physical parameter in the subsurface is seen, and the sensitivity function is a characteristic of the method that reveals the nature of this filter. Insight into the structural pattern of the sensitivity function pertaining to a certain transmitter-receiver configuration provides the geophysicist with an image that allows an immediate qualitative understanding of the characteristics of the method. The assets and shortcomings of different measuring configurations can be discussed and understood, and the sensitiv

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Poljak, Dragan, Mario Cvetković, Vicko Dorić, et al. "Integral Equation Formulations and Related Numerical Solution Methods in Some Biomedical Applications of Electromagnetic Fields." International Journal of E-Health and Medical Communications 9, no. 1 (2018): 65–84. http://dx.doi.org/10.4018/ijehmc.2018010105.

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The paper reviews certain integral equation approaches and related numerical methods used in studies of biomedical applications of electromagnetic fields pertaining to transcranial magnetic stimulation (TMS) and nerve fiber stimulation. TMS is analyzed by solving the set of coupled surface integral equations (SIEs), while the numerical solution of governing equations is carried out via Method of Moments (MoM) scheme. A myelinated nerve fiber, stimulated by a current source, is represented by a straight thin wire antenna. The model is based on the corresponding homogeneous Pocklington integro-d

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42

You, Kok Yeow, Jamaliah Salleh, Mohd Fareq Abd Malek, Zulkifly Abbas, Cheng Ee Meng, and Lee Kim Yee. "Modeling of Coaxial Slot Waveguides Using Analytical and Numerical Approaches: Revisited." International Journal of Antennas and Propagation 2012 (2012): 1–12. http://dx.doi.org/10.1155/2012/701532.

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Our reviews of analytical methods and numerical methods for coaxial slot waveguides are presented. The theories, background, and physical principles related to frequency-domain electromagnetic equations for coaxial waveguides are reassessed. Comparisons of the accuracies of various types of admittance and impedance equations and numerical simulations are made, and the fringing field at the aperture sensor, which is represented by the lumped capacitance circuit, is evaluated. The accuracy and limitations of the analytical equations are explained in detail. The reasons for the replacement of ana

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43

Ren, Zi Yan, Dian Hai Zhang, Minh Trien Pham, and Chang Seop Koh. "A New Reliability Calculation Algorithm Based on Sensitivity Analysis and its Application to Reliability-Based Robust Global Optimization of Electromagnetic Device with Uncertain Design Variables." Materials Science Forum 721 (June 2012): 165–70. http://dx.doi.org/10.4028/www.scientific.net/msf.721.165.

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A novel reliability calculation algorithm is developed and applied to a robust optimization of electromagnetic device with uncertain design variables taken into account. The proposed algorithm, to calculate the reliability of a given design, incorporates sensitivity analysis based on finite element method with Monte Carlo simulation (MCS) method so that it has higher numerical efficiency than conventional methods: MCS and first-order reliability methods. Through numerical examples, its applicability to a reliability-based robust optimal design of electromagnetic device is demonstrated.

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44

Hayami, K. "High precision numerical integration methods for 3-D boundary element analysis (of electromagnetic problems)." IEEE Transactions on Magnetics 26, no. 2 (1990): 603–6. http://dx.doi.org/10.1109/20.106389.

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45

Kress, Rainer. "Integral equation methods in inverse obstacle scattering." ANZIAM Journal 42, no. 1 (2000): 65–78. http://dx.doi.org/10.1017/s1446181100011603.

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AbstractIn this survey we consider a regularized Newton method for the approximate solution of the inverse problem to determine the shape of an obstacle from a knowledge of the far field pattern for the scattering of time-harmonic acoustic or electromagnetic plane waves. Our analysis is in two dimensions and the numerical scheme is based on the solution of boundary integral equations by a Nyström method. We include an example of the reconstruction of a planar domain with a corner both to illustrate the feasibility of the use of radial basis functions for the reconstruction of boundary curves w

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46

Schlensok, C., B. Schmülling, M. van der Giet, and K. Hameyer. "Electromagnetically excited audible noise – evaluation and optimization of electrical machines by numerical simulation." COMPEL - The international journal for computation and mathematics in electrical and electronic engineering 26, no. 3 (2007): 727–42. http://dx.doi.org/10.1108/03321640710751181.

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PurposeDisturbing vibrations and noise of electrical machines are gaining impact. The paper aims to focus on the necessity of estimating the electromagnetic, structure‐dynamical, and acoustic behaviour of the machine during designing and before proto‐typing.Design/methodology/approachAn adequate tool is numerical simulation applying the finite‐element method (FEM) and the boundary‐element method (BEM) allowing for the structured analysis and evaluation of audible noise also caused by manufacturing tolerances.FindingsThe simulated results show good accordance to measurement results. The methods

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Fedotov, Fedor, Alexander Nerukh, and Igor Scherbatko. "Comparison of the FDTD and direct-integrating methods for electrodynamics problem in time-varying medium." Facta universitatis - series: Electronics and Energetics 15, no. 2 (2002): 165–73. http://dx.doi.org/10.2298/fuee0202165f.

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In this paper the finite differences in time domain and the integral equation in time domain approaches for calculation of an electromagnetic signal propagation in an active media are investigated, accuracy and stability comparison of these methods are examined. Special computer modeling software is developed for realization of the numerical experiments.

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Živković, Zlatko, Duje Despalatović, Dragan Poljak, Antonio Šarolić, and Khalil El Khamlichi Drissi. "Computation of SAR in Human Eye and Pregnant Woman Using Different Simulation Tools." Journal of Communications Software and Systems 8, no. 2 (2012): 33. http://dx.doi.org/10.24138/jcomss.v8i2.169.

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Electromagnetic modeling of large scale problems arising from complex geometries, such as the human body or the specific organ, is generally undertaken by numerical methods implemented in simulation software packages. The structures involving high discretization density (mainly based on Magnetic Resonance Imaging and handled by Finite Difference Time Domain method) consume tremendously high computational cost. On the other hand, oversimplified numerical models may result in significantly less accuracy. The aim of this work was to investigate how detailed numerical model could be created using

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Pleshivtseva, Yuliya, Marco Baldan, Anton Popov, Alexander Nikanorov, Edgar Rapoport, and Bernard Nacke. "Effective methods for optimal design of induction coils on example of surface hardening." COMPEL - The international journal for computation and mathematics in electrical and electronic engineering 39, no. 1 (2019): 90–99. http://dx.doi.org/10.1108/compel-05-2019-0216.

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Purpose This paper aims to describe main ideas and demonstrates results of the research activities carried out by the authors in the field of optimal design concepts for induction heater for surface hardening. The main goal of the research studies is the application of different optimization methods and numerical finite element method (FEM) codes for field analysis to solve the optimal design problem that is mathematically formulated in terms of the one of the most important optimization criteria for surface hardening technology, e.g. maximum temperature uniformity within the hardening surface

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Besse, Nicolas, Norbert Mauser, and Eric Sonnendrücker. "Numerical Approximation of Self-Consistent Vlasov Models for Low-Frequency Electromagnetic Phenomena." International Journal of Applied Mathematics and Computer Science 17, no. 3 (2007): 361–74. http://dx.doi.org/10.2478/v10006-007-0030-3.

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Numerical Approximation of Self-Consistent Vlasov Models for Low-Frequency Electromagnetic PhenomenaWe present a new numerical method to solve the Vlasov-Darwin and Vlasov-Poisswell systems which are approximations of the Vlasov-Maxwell equation in the asymptotic limit of the infinite speed of light. These systems model low-frequency electromagnetic phenomena in plasmas, and thus "light waves" are somewhat supressed, which in turn allows the numerical discretization to dispense with the Courant-Friedrichs-Lewy condition on the time step. We construct a numerical scheme based on semi-Lagrangian

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