COMPEL - The international journal for computation and mathematics in electrical and electronic engineering: Volume 26 Issue 3

Electromagnetic models for metallic carbon nanotube interconnects

To investigate the possible application of carbon nanotubes (CNTs) as interconnects and antennas.

Numerical modelling of the interaction of nanoparticles with electromagnetic waves

The paper is focused on the numerical modelling of the interaction between electromagnetic fields and metallic nanoparticle.

On the convergence of the transfinite‐element method

The convergence of the transfinite‐element (TFE) method for high frequency methods is analyzed in this paper. Two different potential formulations will be compared in the…

Perfectly matched layers for T, Φ formulation

Perfectly matched layers (PMLs) are used for reflectionless truncation of the problem boundaries in finite element methods applications. In this paper, the method of PMLs is…

Analysis of plasmon oscillations in metallic nanoparticles

To study optical resonances in metallic nanoparticles.

Losses scaling in soft magnetic materials

The paper presents an application of the scaling theory in a description of energy losses in soft magnetic materials in order to improve an agreement between measurements and…

Transmission line meshes for computational simulation of electromagnetic modes in the Earth's atmosphere

Two transmission line meshes to simulate electromagnetic waves in the Earth's atmosphere are developed, one with the link transmission lines connected in parallel and the other…

Influence of the discretization error on the reconstruction accuracy in electrical capacitance tomography

The investigation of the influence of the modeling error on the solution of the inverse problem given uncertain measured data in electrical capacitance tomography (ECT).

3D topology optimization using an immune algorithm

The paper introduces an evolutionary algorithm based on the artificial immune systems paradigm for topology optimization (TO) in 3D.

Design and synthesis of wide tuning range variable comb drive MEMS capacitors

To present a general synthesis method in the design of variable comb drive MEMS capacitors which can provide specified capacitance versus position profiles while give large tuning…

A perturbation finite element method for modeling moving conductive and magnetic regions without remeshing

To develop a sub‐domain perturbation technique for efficiently modeling moving systems in magnetodynamics with a magnetic field h‐conform finite element (FE) formulation.

Efficient design analysis of a novel magnetic gear on a high performance computer

Aims to show that efficiency and accuracy of integral equation methods (IEMs) in combination with the fast multipole method for the design of a novel magnetic gear.

Electromagnetically excited audible noise – evaluation and optimization of electrical machines by numerical simulation

Disturbing vibrations and noise of electrical machines are gaining impact. The paper aims to focus on the necessity of estimating the electromagnetic, structure‐dynamical, and…

de Rham currents in discrete electromagnetism

To describe and extend existing concepts of discrete electromagnetism in a unified formalism; to give examples for the usefulness of the presented ideas for our theoretical work…

Error control schemes for adaptive time integration of magnetodynamic systems with variable spatial mesh resolution

A combination of both time step adaptivity and spatial mesh adaptivity is presented for transient magneto‐quasistatic fields.

Hybrid genetic algorithms using quadratic local search operators

The paper aims to present a new methodology for hybrid genetic algorithms (GA) in the solution of electromagnetic optimization problems.

Investigation of load noise generation of large power transformer by means of coupled 3D FEM analysis

This paper aims to present a 3D numerical analysis of the load noise generation associated with large, oil immersed three‐phase power transformers.

Design of an electromagnetic actuator for parametric stiffness excitation

An overview is given on design features, numerical modelling and testing of a novel electromagnetic actuator to achieve a controllable stiffness to be used as a device for…

Modelling of electrostatic accelerator tubes

To investigate the effectiveness of a simple analytic model for the calculation of electrostatic fields and optical properties of particle beams in accelerator tubes.

3D magnetic field analysis of permanent magnet type of MRI using preconditioned MRTR method

The paper examines the convergence characteristics of the “minimized residual method based on the MRTR (three‐term recurrence formula of CG‐type) method” for solving large linear…

Investigation of low‐frequency behaviour of two surface integral full‐Maxwell formulations

To apply two different integral formulations of full‐Maxwell's equations to the numerical study of interconnects in a low‐frequency range and compare the results.

Implementation of surface impedance boundary conditions in the cell method via the vector fitting technique

To show a possible implementation of surface impedance boundary conditions (SIBCs) in a time domain formulation based on the cell method (CM).

Efficient post‐processing with the integral equation method

To show for magnetostatic problems, how the numerically expensive post‐processing with the integral equation method (IEM) can be accelerated with the fast multipole method (FMM…

An efficient parallel PCG method for eddy current analysis

It is important to investigate large‐scale numerical analyses of electromagnetic fields in design processes of electromagnetic machines. Thus, faster solvers for eddy current…

Driving a coupled field‐circuit problem

The paper addresses various ways of driving a magneto‐quasi‐static coupled field‐circuit problems, starting with the underlying assumptions of this problem class. It focuses on…

Transient calculation of the induced currents inside the brain during magnetic stimulation

Transient calculation of currents in brain tissue induced during a transcranial magnetic stimulation treatment.

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