CE Seminar
Together with the Computational Engineering Research Center of the TU Darmstadt a joint seminar with interesting talks in the field of CE is organized in every semester. If you are interested in these seminars and would like to receive invitations please subscribe for the corresponding mailing list.
Talks in 2020

2019/02/06 12:30
Continuous and Discontinuous Galerkin methods in fluid dynamics with moving geometries
Prof. Dr. Sabine Roller, University of Siegen
Interaction between structures and the flow around them requires a correct treatment of both of them. If the computational requirements are high, the methods need to be efficient…

2019/02/06 12:30
Particle Methods in Bounded Domains
Dr. Matthias Kirchhart, RWTH Aachen
Particle methods like vortex methods or smoothed particle hydrodynamics are numerical schemes that are ideally suited for convection dominated flow problems. Unlike other meshbased flow…

2019/02/06 12:30
Uncertainty quantification for partial differential equations on random domains
Prof. Dr. Michael Multerer, ICS Institute of Computational Science, Lugano
The numerical simulation of physical phenomena is very well understood given that the input data are given exactly. However, in practice, the collection of these data is usually…

2019/02/06 12:30
A systems guy's view of quantum computing
Prof. Dr. Torsten Hoefler, ETH Zürich
I will provide an introduction to the general concepts of quantum computation and a brief discussion of its strengths and weaknesses from a highperformance computing perspective…
Previous Talks
2020
Approaching the 50th birthday of the PEEC method: from the early formulation to its current relevance for challenging engineering electromagnetic problems
Prof. Piergiorgio Alotto, PhD, Università di Padova, Italy
3 Feb 2020, 16:15–17:45; Location: S217103
The main focus of this talk is to demonstate how recent developments have extended the applicability and improved the accuracy of the Unstructured Partial Element Equivalent Circuit (PEEC) method. The interest on this subject is spurred by the growing need for fast and efficient numerical methods, which may help engineers during the design and other stages of the production of new generation electric components.
First, the extension to magnetic media of the unstructured PEEC method is presented. In this regard, two formulations are developed and compared: the first one, based on the Amperian interpretation of the magnetization phenomena, is derived from the existing literature concerning the standard (structured) version of PEEC; the second one, based on the Coulombian interpretation of the magnetization phenomena, is proposed, with the aim of collocating PEEC in the context of Volume Integral Equation methods.
Then, the application of low–rank compression techniques to PEEC is investigated. Two different methods are applied: the first is based on hierarchical matrices (H matrices) whereas the second is based on hierarchical–semi–separable (HSS) matrices. The two methods are compared and the main numerical issues which emerge by such techniques to PEEC are analyzed.
Finally, the developed unstructured PEEC method is combined with the Marching OninTime scheme for the study of fast transient phenomena with a wide range of harmonics. Moreover, two different stochastic PEEC methods are developed for uncertainty quantification analysis. The first is based on the Polynomial Chaos expansion while the second is based on the Parametric Model Order Reduction technique coupled with spectral expansion.
The talk will end with the combined application of all the above techniques to a problem of current industrial interest, i.e. a wireless power transfer system for automotive applications.