Conference YIC GACM 2015 (featuring Amy Farrah Fowler)

yic_amyThe YIC GACM took place last week in Aachen with several highlights: Thorben Casper gave a talk on electrothermal simulation of bondwires as part of our research for the nanoCOPS project and contributed to the science slam on Wednesday. On Friday, Tom Hughes and Alfio Quarteroni gave great presentations on isogeometric analysis and reduced bases, respectively while Mayim Bialik aka Amy Farrah Fowler talked about her scientific and acting career, addressing in particular role models and women in science. Surprisingly, media seems to cover only the last event.

New Paper in Journal of Mathematics in Industry

Mathematics in IndustryThe paper “Efficient frequency-transient co-simulation of coupled heat-electromagnetic problems” together with Christof Kaufmann, Michael Günther, Daniel Klagges, Michael Knorrenschild, Matthias Richwiny and Jan ter Maten has been accepted for publication and will appear soon in the Journal of Mathematics in Industry, a peer-reviewed open access journal published under the brand SpringerOpen.

EU Project nanoCOPS

Am 1. November ist das EU Projekt nanoCOPS (Nanoelectronic Coupled Problems Solutions) gestartet. Führende Experten aus Industrie und Wissenschaft in Europa wollen gemeinsam neue Methoden entwickeln, die ein verbessertes und erneuertes Design von integrierten Schaltungen ermöglichen. Dafür arbeiten Spezialisten im Schaltungsentwurf, in der Halbleiterentwicklung sowie der Angewandten Mathematik in Forschung und Softwareentwicklung zusammen. Insgesamt sind zwölf Forschungsinstitutionen und Unternehmen an dem Projekt beteiligt, das von der EU im Rahmen des 7. Forschungsrahmenprogramms mit insg. 3,5 Millionen Euro für drei Jahre gefördert wird. Continue reading →

Invited Talk at OctConf 2013 on Coupled Simulations (UPDATE)

Next week I will attend OctConf 2013. From the official announcement: “Following the success of OctConf 2012 which brought together users and developers for five days in July in the French Canadian summer, the first european OctConf will be held in Milan, Italy on June 24-26 2013”. I will give an invited talk on “Niobe – an Octave/Matlab Based Environment for Coupled Low-Frequency Electromagnetic Field Simulations in Teaching and Research”, co-author is Herbert De Gersem (with contributions from A. Bartel, M. Clemens, M. Günther, C. Kaufmann, J. ter Maten and D. Schmidthäusler). You can find the slides here.

UPDATE 1: Live Blog at Octave’s Google+ site.

UPDATE 2: At OctConf 2013 were several presentation given from Google Summer of Code students, for example one deals with new incomplete factorizations for preconditioning (by Kai Torben Ohlhus) and another one is concerned with a general purpose PDE package (Gedeone). Stay tuned!

Paper on “Winding Functions” accepted

Winding functionsToday, 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.

EMF 2013: Field-Circuit Coupling and Winding Functions

EMF2013Next 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“.

New article published in SISC

SIAM Journal on Scientific Computing (image taken from

Andreas Bartel, Markus Brunk, Michael Günther, and I have published a new article in the current issue 35(2) of SIAM’s Journal of Scientific Computing (Section: Computational Methods in Science and Engineering). The paper discusses dynamic iteration for coupled problems of electric circuits and distributed devices.

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DMV Tagung, Köln

Auf der Tagung des deustchen Mathematikerverbandes habe ich einen Vortrag zum “Mehrskalenverfahren für die Feld- und Netzwerkkopplung” gehalten: es wurden vor allem Mehrskalenverfahren in der Zeit für die schwachgekoppelte Simulation von räumlichverteilten elektromagnetischen Bauteilen mit elektrischen Netzwerken besprochen.

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BMBF Sofa Kopplungsworkshop

Die Arbeitsgruppe für Angewandte Mathematik und Numerische Analysis an der Bergischen Universität Wuppertal veranstaltet am 1. Juli 2011, 13:00 – 16:00 im Rahmen des BMBF-Verbundprojekts SOFA (Gekoppelte Simulation und Optimierung für robustes virtuelles Fahrzeugdesign) einen Kopplungsworkshop. Herzlich eingeladen sind auch alle interessierten Studenten, Mitarbeiter und Industriepartner, die nicht zum Projekt gehören.

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