36 citations · 77 across the 14 of their papers we have counts for
15 papers
Simulation of Permittivity and Conductivity Graded Materials for HVDC GIL for Different Voltage Forms
Hendrik Hensel, Christoph Joergens, Markus Clemens
Functionally graded materials (FGM) are applied in HVDC gas insulated lines (GIL) to control the electric field within the DC insulation system. In HVDC GIL, FGM with a spatial dis…
Aspects of Coupled Problems in Computational Electromagnetics Formulations
Markus Clemens, Sebastian Schöps, Carsten Cimala +4
This paper addresses different aspects of "coupled" model descriptions in computational electromagnetics. This includes domain decomposition, multiscale problems, multiple or hybri…
Port-Hamiltonian Systems Modelling in Electrical Engineering
Andreas Bartel, Markus Clemens, Michael Günther +2
The port-Hamiltonian modelling framework allows for models that preserve essential physical properties such as energy conservation or dissipative inequalities. If all subsystems ar…
Electromagnetic Quasistatic Field Formulations of Darwin Type
Markus Clemens, Marvin-Lucas Henkel, Fotios Kasolis +3
Electromagnetic quasistatic (EMQS) fields, where radiation effects are neglected, while Ohmic losses and electric and magnetic field energies are considered, can be modeled using D…
Parallel-in-Time Solution of Eddy Current Problems Using Implicit and Explicit Time-stepping Methods
Idoia Cortes Garcia, Iryna Kulchytska-Ruchka, Markus Clemens +1
The time domain analysis of eddy current problems often requires the simulation of long time intervals, e.g. until a steady state is reached. Fast-switching excitations e.g. in pul…
A Two-Step Darwin Model Time Domain Formulation for Quasistatic Electromagnetic Field Calculations
M. Clemens, F. Kasolis, M. -L. Henkel +2
In the absence of wave propagation, transient electromagnetic fields are governed by a composite scalar/vector potential formulation for the quasistatic Darwin field model. Darwin-…
Magnetic Field Simulations Using Explicit Time Integration With Higher Order Schemes
Bernhard Kähne, Markus Clemens, Sebastian Schöps
A transient magneto-quasistatic vector potential formulation involving nonlinear material is spatially discretized using the finite element method of first and second polynomial or…
Towards Real-Time Magnetic Dosimetry Simulations for Inductive Charging Systems
Norman Haussmann, Martin Zang, Robin Mease +3
The exposure of a human by magneto-quasistatic fields from wireless charging systems is to be determined from magnetic field measurements in near real-time. This requires a fast li…
Maximum Entropy Snapshot Sampling for Reduced Basis Generation
Fotios Kasolis, Markus Clemens
Snapshot back-ended reduced basis methods for dynamical systems commonly rely on the singular value decomposition of a matrix whose columns are high-fidelity solution vectors. An a…
A Darwin Time Domain Scheme for the Simulation of Transient Quasistatic Electromagnetic Fields Including Resistive, Capacitive and Inductive Effects
Markus Clemens, Bernhard Kähne, Sebastian Schöps
The Darwin field model addresses an approximation to Maxwell's equations where radiation effects are neglected. It allows to describe general quasistatic electromagnetic field phen…
Survey on Semi-Explicit Time Integration of Eddy Current Problems
Jennifer Dutiné, Markus Clemens, Sebastian Schöps
The spatial discretization of the magnetic vector potential formulation of magnetoquasistatic field problems results in an infinitely stiff differential-algebraic equation system.…
Parallel-In-Time Simulation of Eddy Current Problems Using Parareal
Sebastian Schöps, Innocent Niyonzima, Markus Clemens
In this contribution the usage of the Parareal method is proposed for the time-parallel solution of the eddy current problem. The method is adapted to the particular challenges of…
Explicit Time Integration of Transient Eddy Current Problems
Jennifer Dutiné, Markus Clemens, Sebastian Schöps +1
For time integration of transient eddy current problems commonly implicit time integration methods are used, where in every time step one or several nonlinear systems of equations…
GPU Accelerated Explicit Time Integration Methods for Electro-Quasistatic Fields
Christian Richter, Sebastian Schöps, Markus Clemens
Electro-quasistatic field problems involving nonlinear materials are commonly discretized in space using finite elements. In this paper, it is proposed to solve the resulting syste…
Multiple Right-Hand Side Techniques in Semi-Explicit Time Integration Methods for Transient Eddy Current Problems
Jennifer Dutiné, Markus Clemens, Sebastian Schöps
The spatially discretized magnetic vector potential formulation of magnetoquasistatic field problems is transformed from an infinitely stiff differential algebraic equation system…