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Journal articles on the topic 'MAXWELL 3D SIMULATION'

Author: Grafiati

Published: 11 September 2023

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1

Rong-yan, Guo, and Shi Shui-e. "AC Contactor Electromagnetic Mechanism Dynamic Simulation Study." Open Electrical & Electronic Engineering Journal 8, no. 1 (2014): 419–27. http://dx.doi.org/10.2174/1874129001408010419.

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In this paper, we study the application of Maxwell 3D and ADAMS software for simulation and analysis of electromagnetic system, with UG software for AC contactor and main contact system of electromagnetic system. We then study the influence of harmonic on type CJX2-40 AC contactor main contact system and operation characteristics. To establish a three-dimensional finite element model of electromagnetic mechanism of AC contactor, we take Maxwell 3D software, on the model of finite element mesh, the calculation of different closing sine excitation and containing under harmonic excitation angle e

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Ganse, Urs, Tuomas Koskela, Markus Battarbee, et al. "Enabling technology for global 3D + 3V hybrid-Vlasov simulations of near-Earth space." Physics of Plasmas 30, no. 4 (2023): 042902. http://dx.doi.org/10.1063/5.0134387.

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We present methods and algorithms that allow the Vlasiator code to run global, three-dimensional hybrid-Vlasov simulations of Earth's entire magnetosphere. The key ingredients that make Vlasov simulations at magnetospheric scales possible are the sparse velocity space implementation and spatial adaptive mesh refinement. We outline the algorithmic improvement of the semi-Lagrangian solver for six-dimensional phase space quantities, discuss the coupling of Vlasov and Maxwell equations' solvers in a refined mesh, and provide performance figures from simulation test runs that demonstrate the scala

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3

Zhang, Guang Cai, Hong Fu Ai, Ya Jie Xu, Qiao Yan Chen, and Xiao Dong Yang. "The Design of Small H-Style Permanent Magnet Used for NMR." Applied Mechanics and Materials 703 (December 2014): 114–18. http://dx.doi.org/10.4028/www.scientific.net/amm.703.114.

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This paper introduces the design of permanent magnet that can been used to small nuclear magnetic resonance (NMR) system, and its static magnetic field simulation analysis uses Ansoft's Maxwell software. According to the theory of magnetic circuit design and the performance requirements of magnetic field, An H-style permanent magnetic actuator has been designed, and it can generate uniform magnetic field larger than 0.4 T in the interested region of this actuator. The static magnetic field simulation analysis of this permanent magnetic actuator has done by Ansoft's Maxwell 3D software, and the

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Chen, Keyu, Marcus Hartwig, and Shahram Amoozegar. "Electric machine noise and vibration prediction and validation through test." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 264, no. 1 (2022): 309–16. http://dx.doi.org/10.3397/nc-2022-735.

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In this paper, a finite element (FE) simulation process for the NVH prediction of electric motors is proposed. The proposed process first simulates the motor excitation forces using a 2D electromagnetic force model which is derived from Maxwell and then it applies these forces to a simplified 3D electric machine model. This simplified 3D model is validated by comparing the structural transfer functions calculated from impact hammer test and FE simulation. Finally, the proposed simulation process is validated by comparing predicted sound pressure levels at different selected locations to an ele

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Peng, Wen Zhen, Shu Min Wan, Bin Lin, Li Peng Sun, and Mei Ning Yang. "Finite Element Simulation of Electromagnetic Properties of Ferrite Material." Materials Science Forum 770 (October 2013): 29–33. http://dx.doi.org/10.4028/www.scientific.net/msf.770.29.

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As the inductance of magnetic cores is the most important parameter for their service performance. Four coupling models of EE-type ferrite cores are established to analyze the relationship between surface quality and the inductance of ferrite cores. Besides, 3D FEM simulation of different models is made by ANSOFT MAXWELL software. The results show that the surface quality has a direct influence on the service performance of ferrite devices.

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6

Song, Shou Xiang, Liang Zou, Tong Zhao, Li Zhang, Qing Quan Li, and Meng Qi Liu. "FEM Simulations of Permanent-Magnet-Biased Saturation Based Fault Current Limiter." Advanced Materials Research 960-961 (June 2014): 867–70. http://dx.doi.org/10.4028/www.scientific.net/amr.960-961.867.

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The fault current limit technology based on the principle of permanent-magnet-biased saturation has several outstanding advantages in both economy and technology. A modeling method of PMFCL based on the finite element analysis platform – Maxwell is presented in this paper. The current limiting mechanism of line-type PMFCL is analyzed, on the basis of which the 2D and 3D models are established in Maxwell, and the corresponding experiments are designed as well. Comparisons between the simulation and experimental results indicate that the modeling method is reasonable. Research achievements of th

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Du, Lin, Geng Chen Shi, and Jing Jing Zhao. "Static Characteristics of Micro Disc Magneto Electric Generator – Simulation and Experiment." Applied Mechanics and Materials 365-366 (August 2013): 356–59. http://dx.doi.org/10.4028/www.scientific.net/amm.365-366.356.

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Maxwell 3D software of finite-element analysis in electromagnetic fields is used to model and simulate the micro disc magneto electric generator. Distribution characteristics of magnetic induction are required and theoretical analysis and calculation is presented. Error between the simulation result and experimental result is about 6% which verify the rationality and accuracy of finite-element simulation. It can be used to guide the structural design and optimization of this type of generator.

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8

Blome, Mark, Kevin McPeak, Sven Burger, Frank Schmidt, and David Norris. "Back-reflector design in thin-film silicon solar cells by rigorous 3D light propagation modeling." COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering 33, no. 4 (2014): 1282–95. http://dx.doi.org/10.1108/compel-12-2012-0367.

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Purpose – The purpose of this paper is to find an optimized thin-film amorphous silicon solar cell design by numerically optimizing the light trapping efficiency of a pyramid-structured back-reflector using a frequency-domain finite element Maxwell solver. For this purpose short circuit current densities and absorption spectra within the investigated solar cell model are systematically analyzed. Furthermore, the authors employ a topology simulation method to accurately predict the material layer interfaces within the investigated solar cell model. The method simulates the chemical vapor deposi

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9

Tang, Hao, Dongpo Wang, and Zhao Duan. "New Maxwell Creep Model Based on Fractional and Elastic-Plastic Elements." Advances in Civil Engineering 2020 (February 10, 2020): 1–11. http://dx.doi.org/10.1155/2020/9170706.

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Creep models are mainly used to describe the rheological behaviour of geotechnical materials. An important research focus for studying creep in geotechnical materials is the development of a model with few parameters and good simulation performance. Hence, in this study, by replacing the Newtonian dashpot and spring in the classical Maxwell model with fractional and elastic-plastic elements, a new Maxwell creep model based on fractional derivatives and continuum damage mechanics was developed. One- and three-dimensional (1D/3D) creep equations of the new Maxwell creep model were derived. The 1

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10

Su, Yu, Le Gong, Hui Cao, and Dan Dan Chen. "Optimization of Electrostatic Atomization Cutting Using 3D FE Simulation of Electrostatic Field." Key Engineering Materials 693 (May 2016): 1255–62. http://dx.doi.org/10.4028/www.scientific.net/kem.693.1255.

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Compared with minimal quantity lubrication (MQL), electrostatic atomization can control the movement of mist droplets by changing the electrostatic field, thus reducing the drift of mist droplets in air. This paper first proposes the concept of electrostatic atomization cutting, and then develops a 3D FE model of electrostatic field for electrostatic atomization cutting using a commercial software Ansoft Maxwell. By simulation, the influence of nozzle angle, structure, and electrode gap and voltage on electric field intensity is investigated. Based on simulation results, the optimal nozzle ang

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11

Santos, J. M., E. Ricardo, F. J. da Silva, T. Ribeiro, S. Heuraux, and A. Silva. "A 3D CAD model input pipeline for REFMUL3 full-wave FDTD 3D simulator." Journal of Instrumentation 16, no. 11 (2021): C11013. http://dx.doi.org/10.1088/1748-0221/16/11/c11013.

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Abstract The use of advanced simulation has become increasingly more important in the planning, design, and assessment phases of future fusion plasma diagnostics, and in the interpretation of experimental data from existing ones. The design cycle of complex reflectometry systems, such as the ones being planned for next generation machines (IDTT and DEMO), relies heavily on the results produced by synthetic diagnostics, used for system performance evaluation and prediction, both crucial in the design process decision making. These synthetic diagnostics need realistic representations of all syst

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Ressler, S. M. "3D MHD simulation of a pulsationally driven MRI decretion disc." Monthly Notices of the Royal Astronomical Society 508, no. 4 (2021): 4887–901. http://dx.doi.org/10.1093/mnras/stab2880.

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ABSTRACT We explore the pulsationally driven orbital mass ejection mechanism for Be star disc formation using isothermal, 3D magnetohydrodynamic (MHD) and hydrodynamic simulations. Non-radial pulsations are added to a star rotating at 95 per cent of critical as an inner boundary condition that feeds gas into the domain. In MHD, the initial magnetic field within the star is weak. The hydrodynamics simulation has limited angular momentum transport, resulting in repeating cycles of mass accumulation into a rotationally supported disc at small radii followed by fall-back on to the star. The MHD si

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Szulborski, Michał, Sebastian Łapczyński, and Łukasz Kolimas. "Thermal Analysis of Heat Distribution in Busbars during Rated Current Flow in Low-Voltage Industrial Switchgear." Energies 14, no. 9 (2021): 2427. http://dx.doi.org/10.3390/en14092427.

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The manuscript presents advanced coupled analysis: Maxwell 3D, Transient Thermal and Fluent CFD, at the time of a rated current occurring on the main busbars in the low-voltage switchgear. The simulations were procured in order to aid the design process of such enclosures. The analysis presented the rated current flow in the switchgear busbars, which allowed determining their temperature values. The main assumption of the simulation was measurements of temperature rise during rated current conditions. Simulating such conditions is a valuable asset in order to design better solutions for energy

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ÖZÜPAK, Yıldırım. "Performing Structural Design and Modeling of Transformers Using ANSYS-Maxwell." Brilliant Engineering 2, no. 2 (2021): 38–42. http://dx.doi.org/10.36937/ben.2021.002.005.

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Transformers have attracted great interest since they have been used due to their robustness and application in power systems. Therefore, the nominal values of transformers grow even more in larger power systems due to the constantly increasing power demand. Many types of research are carried out to increase the performance characteristics of transformers and their compatibility with power systems. There are different methods and analysis tools for these studies. One of them is ANSYS@Maxwell, which performs analysis based on the Finite Element Method (FEM). With this program, the design, model

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Dzyurkevich, Natalia, Mario Flock, and Hubert Klahr. "3D global MHD simulations of a proto-planetary disk: dead zone and large-scale magnetic fields." Proceedings of the International Astronomical Union 4, S259 (2008): 117–18. http://dx.doi.org/10.1017/s1743921309030257.

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AbstractWe present 3D global MHD simulations of proto-planetary disks calculated with the ZeusMP code. We focus on gas dynamics; the magnetic diffusivity and temperature are fixed during the simulation. A zone with low gas ionization at the midplane is included within ±2 scale heights. We mimic the ‘snow’-line radius with one order of magnitude jump in magnetic diffusivity η. Resulting turbulent Maxwell and Reynolds stresses are present at the midplane despite of low ionization. We find no radial inhomogeneities in turbulent α stress for a mild ionization contrast at the ‘snow’-line. A smooth

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Li, Jiaqi, and Shilong Jin. "Magnetic Field Analysis of Rectangular Current-carrying Coil Based on ANSOFT Maxwell 3D Simulation." Journal of Physics: Conference Series 1168 (February 2019): 052020. http://dx.doi.org/10.1088/1742-6596/1168/5/052020.

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Cao, Yunbai, and Chanwoo Kim. "Glassey-Strauss representation of Vlasov-Maxwell systems in a Half Space." Kinetic and Related Models 15, no. 3 (2022): 385. http://dx.doi.org/10.3934/krm.2021034.

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<p style='text-indent:20px;'>Following closely the classical works [<xref ref-type="bibr" rid="b5">5</xref>]-[<xref ref-type="bibr" rid="b7">7</xref>] by Glassey, Strauss, and Schaeffer, we present a version of the Glassey-Strauss representation for the Vlasov-Maxwell systems in a 3D half space when the boundary is the perfect conductor.</p>

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18

Wang, Da Yang, Fang Yao, and Zhi Gang Li. "Influence of Eddy Current Effect on the Circuit Breaker Contact Mechanism Heat Loss." Advanced Materials Research 805-806 (September 2013): 943–47. http://dx.doi.org/10.4028/www.scientific.net/amr.805-806.943.

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With the three-dimensional field analysis software Ansoft Maxwell 3D, the three-dimensional finite element model of the contacts pair is established. They belong to a kind of miniature circuit breaker. The simulation is carried out in the transient magnetic field. Under the condition with or without eddy current effect, we get the position and numerical solution of the contact mechanism heat loss under different short-circuit current.

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19

Ji, Yanju, Xiangdong Meng, Weimin Huang, Yanqi Wu, and Gang Li. "3D Numerical Modeling of Induced-Polarization Grounded Electrical-Source Airborne Transient Electromagnetic Response Based on the Fictitious Wave Field Methods." Applied Sciences 10, no. 3 (2020): 1027. http://dx.doi.org/10.3390/app10031027.

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The grounded electrical-source airborne transient electromagnetic (GREATEM) system is widely used in mineral exploration. Meanwhile, the induced polarization (IP) effect, which indicates the polarizability of the earth, is often found. In this paper, the Maxwell equations in the frequency domain are transformed into fictitious wave domain, where Maxwell equations are solved by the time domain finite difference method. Then, an integral transformation method is used to convert the calculation results back to the time domain. A three-dimensional (3D) numerical simulation in a polarizable medium

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20

Assous, Franck, and Eric Sonnendrücker. "Joly–Mercier boundary condition for the finite element solution of 3D Maxwell equations." Mathematical and Computer Modelling 51, no. 7-8 (2010): 935–43. http://dx.doi.org/10.1016/j.mcm.2009.08.027.

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21

Maggiore, Nicola. "Conserved chiral currents on the boundary of 3D Maxwell theory." Journal of Physics A: Mathematical and Theoretical 52, no. 11 (2019): 115401. http://dx.doi.org/10.1088/1751-8121/ab045a.

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22

Bai, Peixian, and Yixuan Jia. "Simulation analysis of internal and external faults in transformer area." MATEC Web of Conferences 382 (2023): 01041. http://dx.doi.org/10.1051/matecconf/202338201041.

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Under different types of internal and external faults of transformers, electrical quantities such as voltage, differential current and transformer oil flow rate change accordingly. In this paper, the variation law is studied, and the variation law of differential current and other electrical quantities under different types of faults and abnormal conditions inside and outside the transformer area is verified by simulation. The characteristics of faults inside and outside the area are different, and the faults inside and outside the transformer area are judged. At the same time, ANSYS Maxwell 3

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23

Gündoğar, Umut Yusuf, and Sibel Zorlu Partal. "Design, 3D FEM Simulation and Prototyping of a Permanent Magnet Spherical Motor." Actuators 10, no. 11 (2021): 305. http://dx.doi.org/10.3390/act10110305.

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In recent years, large tilt angles, uniform magnetic flux distributions, strong forces, and large torques for motors have increasingly become important for robotics, biomedical, and automotive applications that have multi-degrees of freedom (MDOFs) motion. Generally, one-degree of-freedom motors are applied in MDOF motion. These situations cause the systems to have very complex and large structures. In order to address these issues, a 2-DOF surface permanent magnet spherical motor with a new mechanical design for the movement of the rotor with a large tilt angle of ±45° was designed, simulated

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WOO, BYUNG-CHUL, DO-KWAN HONG, and JI-YOUNG LEE. "VARIATION OF ELECTRIC PROPERTIES BETWEEN SURFACE PERMANENT MAGNET AND INTERIOR PERMANENT MAGNET MOTOR." International Journal of Modern Physics: Conference Series 06 (January 2012): 109–14. http://dx.doi.org/10.1142/s2010194512003029.

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The most distinctive advantage of transverse flux motor(TFM) is high torque density which has prompted many researches into studying various design variants. TFM is well suited for low speed direct drive applications due to its high torque density. This paper deals with simulation based comparisons between a surface permanent magnet transverse flux motor(SPM-TFM) and an interior permanent magnet transverse flux motor(IPM-TFM). A commercial finite element analysis(FEA) software Maxwell 3D is used for electromagnetic field computation to fully analyze complex geometry of the TFMs. General charac

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Hamiaz, Adnane, Xavier Ferrieres, and Olivier Pascal. "Efficient numerical algorithm to simulate a 3D coupled Maxwell–plasma problem." Mathematics and Computers in Simulation 174 (August 2020): 19–31. http://dx.doi.org/10.1016/j.matcom.2020.02.018.

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Naseri, Mahyar, Sascha C. Iden, and Wolfgang Durner. "Effective hydraulic properties of 3D virtual stony soils identified by inverse modeling." SOIL 8, no. 1 (2022): 99–112. http://dx.doi.org/10.5194/soil-8-99-2022.

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Abstract. Stony soils that have a considerable amount of rock fragments (RFs) are widespread around the world. However, experiments to determine the effective soil hydraulic properties (SHPs) of stony soils, i.e., the water retention curve (WRC) and hydraulic conductivity curve (HCC), are challenging. Installation of measurement devices and sensors in these soils is difficult, and the data are less reliable because of their high local heterogeneity. Therefore, effective properties of stony soils especially under unsaturated hydraulic conditions are still not well understood. An alternative app

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Morvarid, Masoud, Ali Rezghi, Alireza Riasi, and Mojtaba Haghighi Yazdi. "3D numerical simulation of laminar water hammer considering pipe wall viscoelasticity and the arbitrary Lagrangian-Eulerian method." World Journal of Engineering 15, no. 2 (2018): 298–305. http://dx.doi.org/10.1108/wje-08-2017-0236.

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Purpose Analysis of fast transient flow in water pipe systems is an important issue for the prevention of unfavorable pressure oscillations and severe damage to the pipelines. This paper aims to present the performance of three-dimensional (3D) simulation of laminar water hammer caused by fast closure of valve. Design/methodology/approach The viscoelastic behavior of pipe wall is mathematically modeled by using the rheological model of Maxwell. The arbitrary Lagrangian–Eulerian (ALE) method is also used to simulate fluid–structure interaction. In this method, unlike the classical water hammer

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Posenato Garcia, Artur, and Zoya Heidari. "Numerical modeling of multifrequency complex dielectric permittivity dispersion of sedimentary rocks." GEOPHYSICS 86, no. 4 (2021): MR179—MR190. http://dx.doi.org/10.1190/geo2020-0444.1.

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The dielectric response of rocks results from electric double layer (EDL), Maxwell-Wagner (MW), and dipolar polarizations. The EDL polarization is a function of solid-fluid interfaces, pore water, and pore geometry. MW and dipolar polarizations are functions of charge accumulation at the interface between materials with contrasting impedances and the volumetric concentration of its constituents, respectively. However, conventional interpretation of dielectric measurements only accounts for volumetric concentrations of rock components and their permittivities, not interfacial properties such as

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Lăzureanu, Cristian. "The Real-Valued Maxwell–Bloch Equations with Controls: From a Hamilton–Poisson System to a Chaotic One." International Journal of Bifurcation and Chaos 27, no. 09 (2017): 1750143. http://dx.doi.org/10.1142/s0218127417501437.

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Applying parametric controls to the 3D real-valued Maxwell–Bloch equations, we obtain a Hamilton–Poisson system, a dissipative system with chaotic behavior, and a transitional system between the aforementioned states, which is a conservative system that has only one constant of motion. In the Hamiltonian case, we present some connections of the energy-Casimir mapping with the equilibrium states and the existence of the homoclinic orbits. We study the stability of the equilibrium points of the transitional system and the dissipative system. Furthermore, we point out the chaotic behavior of the

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Zhu, Li Yun, Jin Gang Wang, Yu Yi Fan, and Yun Jie Bai. "The Simulation of Distribution Parameter of the Three-Phase D-Dot Voltage Sensor." Applied Mechanics and Materials 556-562 (May 2014): 2123–27. http://dx.doi.org/10.4028/www.scientific.net/amm.556-562.2123.

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As an electric coupling sensor, the D-dot voltage sensor can achieve non contact measurement of voltage. With the advantages of simple structure, a high dynamic range and measurement bandwidth, it can meet the needs of accurate measurement[1][2]. Thus it has great application prospects in voltage on-line monitoring, relay protection or other fields in the power system. This paper considered the operation of the three-phase lines, and established the D-dot voltage sensor simulation model in the simulation platform of Ansoft Maxwell 3D. With the simulation of the sensor working conditions, we ca

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Krakowska, Paulina, and Paweł Madejski. "Research on Fluid Flow and Permeability in Low Porous Rock Sample Using Laboratory and Computational Techniques." Energies 12, no. 24 (2019): 4684. http://dx.doi.org/10.3390/en12244684.

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The paper presents results of fluid flow simulation in tight rock being potentially gas-bearing formation. Core samples are under careful investigation because of the high cost of production from the well. Numerical simulations allow determining absolute permeability based on computed X-ray tomography images of the rock sample. Computational fluid dynamics (CFD) give the opportunity to use the partial slip Maxwell model for permeability calculations. A detailed 3D geometrical model of the pore space was the input data. These 3D models of the pore space were extracted from the rock sample using

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32

Varma, Vishnu, and Bernhard Müller. "3D simulations of oxygen shell burning with and without magnetic fields." Monthly Notices of the Royal Astronomical Society 504, no. 1 (2021): 636–47. http://dx.doi.org/10.1093/mnras/stab883.

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ABSTRACT We present a first 3D magnetohydrodynamic (MHD) simulation of convective oxygen and neon shell burning in a non-rotating $18\, \mathrm{M}_\odot$ star shortly before core collapse to study the generation of magnetic fields in supernova progenitors. We also run a purely hydrodynamic control simulation to gauge the impact of the magnetic fields on the convective flow and on convective boundary mixing. After about 17 convective turnover times, the magnetic field is approaching saturation levels in the oxygen shell with an average field strength of $\mathord {\sim }10^{10}\, \mathrm{G}$, a

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Zaslavsky, M., V. Druskin, and L. Knizhnerman. "Solution of 3D time-domain electromagnetic problems using optimal subspace projection." GEOPHYSICS 76, no. 6 (2011): F339—F351. http://dx.doi.org/10.1190/geo2011-0088.1.

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Time-domain problems for controlled-source electromagnetic exploration require accurate discretization of the solution for multiple spacial and temporal scales. Therefore, forward simulation using conventional computational methods becomes computationally expensive, even without accounting for induced-polarization (IP) effects. These effects create another complication caused by the presence of a convolution integral in the time-domain Maxwell system. We suggested a novel, fast, and robust algorithm to solve the 3D time-domain electromagnetic (EM) problems that can be considered as a generaliz

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sci, global. "Energy Identities and Stability Analysis of the Yee Scheme for 3D Maxwell Equations." Numerical Mathematics: Theory, Methods and Applications 13, no. 3 (2020): 788–813. http://dx.doi.org/10.4208/nmtma.oa-2019-0121.

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Khan, Najeeb Alam, Sidra Khan, and Fatima Riaz. "3D stagnation point flow of Maxwell fluid towards an off-centered rotating disk." Multidiscipline Modeling in Materials and Structures 12, no. 2 (2016): 345–61. http://dx.doi.org/10.1108/mmms-09-2015-0058.

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Purpose – The purpose of this paper is to study the three dimensional, steady and incompressible flow of non-Newtonian rate type Maxwell fluid, for stagnation point flow toward an off-centered rotating disk. Design/methodology/approach – The governing partial differential equations are transformed to a system of non-linear ordinary differential equations by conventional similarity transformations. The non-perturbation technique, homotopy analysis method (HAM) is employed for the computation of solutions. And, the solution is computed by using the well-known software Mathematica 10. Findings –

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Rochlitz, Raphael, Nico Skibbe, and Thomas Günther. "custEM: Customizable finite-element simulation of complex controlled-source electromagnetic data." GEOPHYSICS 84, no. 2 (2019): F17—F33. http://dx.doi.org/10.1190/geo2018-0208.1.

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We have developed the open-source toolbox custEM (customizable electromagnetic modeling) for the simulation of complex 3D controlled-source electromagnetic (CSEM) problems. It is based on the open-source finite-element library FEniCS, which supports tetrahedral meshes, multiprocessing, higher order polynomials, and anisotropy. We use multiple finite-element approaches to solve the time-harmonic Maxwell equations, which are based on total or secondary electric field and gauged potential formulations. In addition, we develop a secondary magnetic field formulation, showing superior performance if

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Boubaker, Mohamed Bader, Benjamin Le Corre, Yves Meshaka, and Gérard Jeandel. "Finite element simulation of the slumping process of a glass plate using 3D generalized viscoelastic Maxwell model." Journal of Non-Crystalline Solids 405 (December 2014): 45–54. http://dx.doi.org/10.1016/j.jnoncrysol.2014.08.018.

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Nechaev, O. V., E. P. Shurina, and M. A. Botchev. "Multilevel iterative solvers for the edge finite element solution of the 3D Maxwell equation." Computers & Mathematics with Applications 55, no. 10 (2008): 2346–62. http://dx.doi.org/10.1016/j.camwa.2007.11.003.

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Mauro, G. S., G. Torrisi, A. Pidatella, A. Galatá, and D. Mascali. "Numerical Design of RF Antennas for Ion Cyclotron Resonance Heating in ECRIS Environment." Journal of Physics: Conference Series 2244, no. 1 (2022): 012023. http://dx.doi.org/10.1088/1742-6596/2244/1/012023.

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Abstract In this paper we present the numerical design and simulation of RF antennas to be employed in Ion Cyclotron Resonance Heating (ICRH) systems working in ECRIS environment. A 3D full-wave numerical model, based on the coupling between COMSOL FEM solution of Maxwell equations and the MATLAB-computed non-homogeneous plasma dielectric tensor, has been employed in order to study the performances of several ICRH antennas. Results in terms of S-parameters, on-axis electric field and RF absorbed power inside the plasma chamber have been obtained and compared between the chosen antenna geometri

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Mauro, G. S., G. Torrisi, A. Pidatella, A. Galatá, and D. Mascali. "Numerical Design of RF Antennas for Ion Cyclotron Resonance Heating in ECRIS Environment." Journal of Physics: Conference Series 2244, no. 1 (2022): 012023. http://dx.doi.org/10.1088/1742-6596/2244/1/012023.

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Abstract In this paper we present the numerical design and simulation of RF antennas to be employed in Ion Cyclotron Resonance Heating (ICRH) systems working in ECRIS environment. A 3D full-wave numerical model, based on the coupling between COMSOL FEM solution of Maxwell equations and the MATLAB-computed non-homogeneous plasma dielectric tensor, has been employed in order to study the performances of several ICRH antennas. Results in terms of S-parameters, on-axis electric field and RF absorbed power inside the plasma chamber have been obtained and compared between the chosen antenna geometri

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Assous, Franck, and Irina Raichik. "A NUMERICAL METHOD FOR 3D TIME-DEPENDENT MAXWELL’S EQUATIONS IN AXISYMMETRIC SINGULAR DOMAINS WITH ARBITRARY DATA." Mathematical Modelling and Analysis 28, no. 3 (2023): 487–508. http://dx.doi.org/10.3846/mma.2023.17553.

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In this article, we propose to solve the three-dimensional time-dependent Maxwell equations in a singular axisymmetric domain with arbitrary data. Due to the axisymmetric assumption, the singular computational domain boils down to a subset of R2. However, the electromagnetic field and other vector quantities still belong to R3. Taking advantage that the domain is transformed into a two-dimensional one, by doing Fourier analysis in the third dimension, one arrives to a sequence of singular problems set in a 2D domain. The mathematical tools of such problems have been exposed in [4,19]. Here, we

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Al-Jubori, Waleed Khalid Shakir, and Yasir Abdulhafedh Ahmed. "Study and analysis the effect of variable applied voltage on SCIM performances based on FEA." International Journal of Power Electronics and Drive Systems (IJPEDS) 11, no. 3 (2020): 1230. http://dx.doi.org/10.11591/ijpeds.v11.i3.pp1230-1240.

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Study and analysis the effect of variable applied voltage on SCIM performances based on FEA is presented. Three phase squirrel cage induction motor SCIM has been investigated and numerically simulated using finite element method (FEM) with the aid of ANSYS software (RMxprt and Maxwell 2D/3D). This research presents study and analysis of the effects of the voltage variation on performance and efficiency of the three-phase induction motor of the squirrel cage type. The Finite Elements Analysis Method FEA is used as one of the best methods for analysis and simulation of electrical motors in addit

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Fiore, P. V., D. B. Maghous, and A. Campos Filho. "A tridimensional finite element approach to model a tunnel with shotcrete and precast concrete." Revista IBRACON de Estruturas e Materiais 9, no. 3 (2016): 403–13. http://dx.doi.org/10.1590/s1983-41952016000300005.

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ABSTRACT This paper describes a numerical simulation with 3D finite elements of a tunnel. The viscoplastic law of Perzyna represents the rockmass behavior. The concrete, shotcrete or precast, is modeled as a viscoelastic material through the Maxwell and Kelvin chain models. Finite element simulations are performed by incorporating subroutines for viscoelastic concrete models in the ANSYS code. The method to simulate tunnel excavations is by activating and deactivating elements in sequential steps. In the first part of the paper two validations are performed. The analytical solution and the def

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Wojciechowski, Rafał M. "Analysis and optimisation of an axial flux permanent magnet coreless motor based on the field model using the superposition principle and genetic algorithm." Archives of Electrical Engineering 65, no. 3 (2016): 601–11. http://dx.doi.org/10.1515/aee-2016-0043.

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Abstract In the paper, methodologies for the magnetic field simulation in an axial flux permanent magnet coreless (AFPMC) motor have been proposed and discussed. Two approaches have been considered and investigated, both based on representing the 3D field distribution by superimposing axisymmetric 2D patterns. The first of studied approaches applies directly to the Biot-Savart law while the second uses a 2D axisymmetric finite element method. The selected results of magnetic field distributions and electromagnetic torque characteristics for the considered AFPMC motor have been presented and co

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Egea-Lopez, Esteban, Jose Maria Molina-Garcia-Pardo, Martine Lienard, and Pierre Degauque. "Opal: An open source ray-tracing propagation simulator for electromagnetic characterization." PLOS ONE 16, no. 11 (2021): e0260060. http://dx.doi.org/10.1371/journal.pone.0260060.

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Accurate characterization and simulation of electromagnetic propagation can be obtained by ray-tracing methods, which are based on a high frequency approximation to the Maxwell equations and describe the propagating field as a set of propagating rays, reflecting, diffracting and scattering over environment elements. However, this approach has been usually too computationally costly to be used in large and dynamic scenarios, but this situation is changing thanks the increasing availability of efficient ray-tracing libraries for graphical processing units. In this paper we present Opal, an elect

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Chen, Na, Yan Song Wang, Hui Guo, Jie Lei, and Tao Zhang. "A Study on Static Features of a High-Speed Solenoid Valve Used in Diesel Engine." Applied Mechanics and Materials 189 (July 2012): 393–97. http://dx.doi.org/10.4028/www.scientific.net/amm.189.393.

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Based on the Maxwell equation and simulation analysis method, this paper investigates and retains the optimized parameters of a high-speed solenoid valve, which is very important for electrical unit pump (EUP) diesels. According to the electromagnetic theory, firstly, a three-dimensional (3D) model of the solenoid valve is established, and working process of the electromagnets is analyzed by using both the theoretical method and Ansys Workbench software. In view of the electromagnetic force, furthermore, several parameters related to the solenoid valve performance are considered and their effe

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Lampadariou, Eleftheria, Konstantinos Kaklamanis, Dimitrios Goustouridis, Ioannis Raptis, and Elefterios Lidorikis. "Nonlocal Effective Medium (NLEM) for Quantitative Modelling of Nanoroughness in Spectroscopic Reflectance." Photonics 9, no. 7 (2022): 499. http://dx.doi.org/10.3390/photonics9070499.

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Spectroscopic reflectance is a versatile optical methodology for the characterization of transparent and semi-transparent thin films in terms of thickness and refractive index. The Fresnel equations are used to interpret the measurements, but their accuracy is limited when surface roughness is present. Nanoroughness can be modelled through a discretized multi-slice and effective medium approach, but to date, this offered mostly qualitative and not quantitative accuracy. Here we introduce an adaptive and nonlocal effective medium approach, which considers the relative size and environment of ea

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Ghnatios, Chady, Anais Barasinski, and Francisco Chinesta. "On the High-Resolution Discretization of the Maxwell Equations in a Composite Tape and the Heating Effects Induced by the Dielectric Losses." Computation 10, no. 2 (2022): 24. http://dx.doi.org/10.3390/computation10020024.

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Electromagnetic field propagation inside composite materials represents a challenge where fiber-scale simulation remains intractable using classical simulation methods. The present work proposes an original 3D simulation with a mesh resolution fine enough to resolve the fiber scale, thanks to the use of Proper Generalized Decomposition (PGD)-based space decomposition, which avoids the necessity of considering homogenized properties and considers the richest description of the involved physics from the solution of the Maxwell equations. This high-resolution simulation enables comparing the elec

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Khurshid, Ajab. "The Application of Micromechanical Modeling to Study the Non-Linear Behavior of Flexible Pavement under Truck Loading in Pakistan." International Journal for Research in Applied Science and Engineering Technology 9, no. 9 (2021): 923–32. http://dx.doi.org/10.22214/ijraset.2021.37975.

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Abstract: This report presents the work done to create a 3D model of a pavement structure, which incorporates in a most accurately way non damaging effects of asphalt layer considering the different layers that compose the pavement structure. A series of approaches have been considered from linear viscoelastic modelling using Maxwell model via UMAT subroutine to integrated viscoelastic response using Prony series available in the built in ABAQUS material library. During this work also other effects have been considered including the viscoelastic behaviour caused by creep, which is included via

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Bernat, Jakub, and Sławomir Stępień. "Induction motor analysis employing optimal torque predictor and massive conductor approach." Archives of Electrical Engineering 59, no. 1-2 (2010): 99–107. http://dx.doi.org/10.2478/s10171-010-0008-x.

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Induction motor analysis employing optimal torque predictor and massive conductor approachThis research presents a method for the simulation of the magneto-mechanical system dynamics taking motion and eddy currents into account. The major contribution of this work leans on the coupling the field-motion problem considering windings as the current forced massive conductors, modelling of the rotor motion composed of two conductive materials and the torque calculation employing the special optimal predictor combined with the modified Maxwell stress tensor method. The 3D model of the device is anal

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