Dr. Lennart Jansen
form Mathematical Institute of the Heinrich-Heine-Universität Düsseldorf (before: HU Berlin
) is visiting Darmstadt. We are working on a proof that guarantees existence and uniqueness of solutions for field/circuit coupled problems.
Today, a new paper on “Winding Functions in Transient Magnetoquasistatic Field-Circuit Coupled Simulations” (together with Herbert De Gersem
and Thomas Weiland
) was accepted by COMPEL
. The article reviews the mutual coupling of electromagnetic fields in the magnetic vector potential formulation with electric circuits in terms of (modified) nodal and (modified) loop analyses using the abstract concept of “winding functions”. Furthermore the coupling is interpreted in the spirit of Tonti diagrams.
Next week I will attend the 9th International Symposium on Electric and Magnetic Fields, EMF 2013
. It will be held in Bruges, Belgium, from 23 to 25 April 2013. According to the organizers “the purpose of the Symposium is to throw a bridge between recent research advances in mathematical and numerical modelling of electromagnetic fields and the growing number of industrial problems requiring such techniques”.
I will talk on tuesday April 23, 2013 in the session 3 on numerical techniques
(16.00 – 18.00 hrs) on “Field-Circuit Coupling Approaches in Terms of Winding Functions
This term the chair of Applied Mathematics offers a seminar on Computational Magnetics. The aim is to understand scientific computing by improving our in-house magnetoquasistatic simulation package ‘FIDES‘.
All the typical tasks of applied mathematics will be covered: modeling, software design, coding, testing, simulation und visualization. This course follows up the lecture from 2010.
During September I will be out of office (Wuppertal). I will be a guest at the Wave Propagation and Signal Processing Research Group of the Katholieke Universiteit Leuven, Kortrijk, thanks to my DAAD grant.
I have written a simulation package FIDES to test multi rate time integration in coupled electromagnetic field and electric circruit equations. The package is part of the COMSON Demonstrator Platform, using OCTAVE as its interpreter.
Recently I wanted to visualize my results. I used ffmpeg to produce a movie from several plots of the flux distribution inside a transformer.