Under the doi 10.3390/mca23010008
Felix Fritzen, Bernard Haasdonk, David Ryckelynck any myself have published a new paper on an algorithmic discussion of competing parametric model reduction techniques for nonlinear problems in Mathematical and Computational Applications
. The Galerkin reduced basis (RB) formulation is presented, which fails at providing significant gains with respect to the computational efficiency for nonlinear problems. Renowned methods for the reduction of the computing time of nonlinear reduced order models are investigated. All approaches are applied to a simple uncertainty quantification of a planar nonlinear thermal conduction problem. The paper is free under CC BY 4.0.
TU Darmstadt’s university journal “hoch3” reports in their current issue 4/2015 on our research activities at the Graduate School CE in the field on uncertainty quantification, see pages 2-3
(UPDATE: the issue is also available in English
The International Congress on Industrial and Applied Mathematics (ICIAM) is held every four years and from August 10 to 14, 2015, mathematicians from around the world gathered in Beijing, China for the 8th ICIAM
held at the China National Convention Center inside the Beijing Olympic Green. We have been presenting works on Multirate Time-Domain Simulation of Field/Circuit Coupled PWM Controlled Devices
(together with Ruth Vazquez Sabariego and Johan Gyselinck) and Modelling of TESLA Cavities’ Eccentricity with Isogeometric Analysis
(Jacopo Corno with Carlo de Falco). The poster presentation of the latter work has been recorded by ICIAM TV
; there is also an interview of Prof. Annalisa Buffa talking about IGA
Ulrich Römer will present next week a talk on Magnetoquasistatic Simulation With Uncertainties and Applications in Magnet Design
at the 1st URSI Atlantic Radio Science Conference (URSI AT-RASC)
in session EF1 Statistical methods in electromagnetics
This week Dr. Felix Fritzen
from KIT was visiting Darmstadt to work with us on an implementation of various Model Order Reduction techniques for parametrized systems, e.g., to be used in uncertainty quantification. The work is part of the scientific network Cosimor
. The figure on the left shows an -surprisingly beautiful- error plot that we obtained.
Next week Christian Schmidt form the University of Rostock is visiting the Graduate School CE and TEMF. He will talk on “Uncertainty quantification in a computationally optimised volume conductor model for deep brain stimulation” on 17 Feb 2013, 14:15–17:00in S2|17-103.
This week Stéphane Clénet from L2EP, Arts et Métiers
ParisTech, Lille is visiting the Graduate School CE and TEMF. He
will talk on “Quantification
of uncertainties in low frequency computational electromagnetics:
from theory to applications
on 27 Jan 2014, 16:15–17:00 in S2|17-103.
On 2-4 December 2013 there is the “Beam Dynamics meets Magnets” Workshop
(in the framework of the EuCARD2 XBEAM-XRING Network) in the Darmstadtium organized by the GSI, Darmstadt.
In the session on tuesday I will give a presentation (joint work with Ulrich Römer) on methods for the robust design of accelerator magnets.
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 →