Prof. Dr. rer. nat. Georg Wimmer

Prof. Dr. rer. nat.

Georg

Wimmer

+49 931 3511 - 8998

+49 152 21888111

FANG (Angewandte Natur und Geisteswissenschaft)

Labor für numerische Simulation

Linux Cluster für High Performance Computing (HPC)

Mathematik
Numerische Mathematik

Mathematik

1. Numerische Simulation
2. Numerische Lösung von partiellen Differentialgleichungen
3. Finite Elemente Methode (FEM), Method of Moments (MoM), Finite Volumen Methode, Discontinuous Galerkin Finite Elemente Methode (DGFEM) und weitere Diskretisierungsverfahren
4. High Performance Computing (HPC)
5. Optimale Steuerung -und Variationsrechnung
6. Optimierung mit gewöhnlichen und partiellen Differentialgleichungen
7. Anwendungen: Simulation von elektromagnetischen Feldern (Transformatoren, Motoren, Generatoren, Antennen), Optimale Steuerung (Bahnführung) in Luft -und Raumfahrt, Robotik, Automobiltechnik

1. Berechnung von optimalen Steuerungen
2. Raum-Zeit adaptive Verfahren für die numerische Berechnung von transienten Magnetfeldern
3. Simulation von elektrischen und magnetischen Feldern
4. Numerik und wissenschaftlichen Rechnen (High Performance Computing)
5. Optimierung mit gewöhnlichen Differentialgleichungen

Gutachter für Konferenzen (Compumag, CEFC) sowie für Zeitschriften Transactions on Magnetics, Applied Numerical Mathematics (APNUM)

-Simulation von elektromagnetischen Feldern
-gekoppelte elekromagnetische und mechanische Probleme
-Multiphysics
-High Performance Computing
-Simulation von mechanischen, thermodynamischen Problemen
-Inverse Probleme

Subkommittee member for the draft 'IEEE PC95.3.1/D1.5 Recommended Practice for Measurements and Computations of Human Exposure to Electric and Magnetic Fields, 0-100 kHz', chaired by Howard Bassen (Leader, Electromagnetics and Wireless Laboratory, Division of Physics, Office of Science and Engineering Laboratories, Center for Devices and Radiological Health, U.S. Food and Drug Administration, Silver Spring, MD),10/2008.

G. Wimmer, Complete Optimization of Three Dimensional Flight Trajectories for a Hypersonic Demonstrator}, Diploma Thesis, Munich University of Technology, 1998.
G. Wimmer, Numerical Solution of Optimal Control Problems by adapted SQP-Nullspace-Methods}, Ph.D. Thesis, Munich University of Technology, 2004.

* R. Callies, G. Wimmer, Efficient Treatment of Characteristic Curves in Optimal Control Problems, In: Workshop on recent developments concerning hypersonic flight systems, Ed.: G. Sachs, Munich 2000, S. 187-196.
* R. Callies, G. Wimmer, Optimal Hypersonic Flight Trajectories with Full Safety in case of Mission Abort, Proc. of the AIAA Atmospheric Flight Mechanics Conference 2000, AIAA-Paper AIAA-2000-3996, Denver, 14.-17. August 2000.
M. Clemens, M. Helias, T. Steinmetz, G. Wimmer, Acceleration of Transient Electro- and Magnetoquasistatic Field Simulations Using Subspace Recycling Techniques, Proceedings of the XII International Symposium on Electromagnetics Fields in Mechatronics, Electrical and Electronic Engineering (ISEF 2005), Baiona, Vigo, Spain, 09/15-18/2005. X. Lopez-Fernádez, S. Wiak, A. Krawczyk, Eds. (ISBN 84-609-7057-4).
T. Steinmetz, N. Gödel, G. Wimmer, M. Clemens, S. Kurz, M. Bebendorf, S. Rjasanow, Symmetric Coupling of Finite-Element and Boundary-Element Methods for Electro-Quasistatic Field Simulations, In: Scientific Computing in Electrical Engineering (SCEE 2006), Series Mathematics in Industry 11, G. Ciupricina, D. Ioan (eds), Springer, Berlin, Heidelberg, New York, 2007, pp. 309-316 (ISBN 978-3-540-71979-3). Selected papers from SCEE 2006, Sinaia, Romania, 17.-22.09.2006.
G. Wimmer, T. Steinmetz, M. Clemens, Reuse, Recycle, Reduce (3R) - Strategies for the Calculation of Transient Magnetic Fields, Applied Numerical Mathematics, Vol. 59, pp. 830-844, 2009, doi: 10.1016/j.apnum.2008.03.015. Presented at the NUMDIFF-11 conference held in Halle, Germany, 04.-08.09.2006.
G. Wimmer, T. Steinmetz, M. Clemens, Numerical Solution of Optimal Control Problems with Sparse SQP-Methods, Numerical Mathematics and Advanced Applications (ENUMATH 2005, Santiago De Compostela, Spain, 07/18-22/2005), A. Bermúdez de Castro, D. Gómez, P. Quintela, P. Salgado. ; Eds., Springer, Berlin, Heidelberg, 2006, pp. 996-1005 (ISBN 3-540-34287-7). Presented at Enumath 2005, Santiago de Compostela, Spain, 18.-22.07.2005.
G. Wimmer, M. Clemens, J. Lang, Calculation of Magnetic Fields with Finite Elements, In: From Nano to Space: Applied Mathematics Inspired by Roland Bulirsch, Eds.: M. Breitner, G. Denk, P. Rentrop, Springer-Verlag Berlin Heidelberg 2008.
G. Wimmer, M. Clemens, Moderne Verfahren der numerischen Magnetfeld-Berechnung, Uni-Forschung, Forschungsmagazin der Helmut-Schmidt-Universität, 18. Jahrgang, Ausgabe 2008, pp. 7-15 (ISSN 0940-8061).
M.Clemens, G. Wimmer, D. Teleaga, J. Lang, Space and Time Adaptive Calculation of Transient 3D Magnetic Fields, Numerical Mathematics and Advanced Applications Proceedings of ENUMATH 2007, the 7th European Conference on Numerical Mathematics and Advanced Applications, Graz, Austria, September 2007, doi: 10.1007/978-3-540-69777-0\_12.
G. Wimmer, Transient Magnetic Field Formulation for Solid Source Conductors with Axial Symmetry, Proceedings of ICCCN 2014, Shanghai, China.
J. Dutiné, M. Clemens, C. Richter, S. Schöps, G. Wimmer, Explicit time integration of eddy current problems with a weakly gauged Schur complement vector potential formulation, Kleinheubach-Tagung 2015.

* R. Callies, G. Wimmer, Optimization of Hypersonic Flight Trajectories, ZAMM {79}, S3 (1999), S. 929-930.
* R. Callies, G. Wimmer, Stabilized Hypersonic Flight Trajectories, ZAMM {81}, S3 (2001), S. 769-770.
T. Steinmetz, G. Wimmer, M. Clemens, Adaptive Linear-Implicit Time Integration Using Subspace Projection Techniques for Electroquasistatic and Thermodynamic Field Simulations, IEEE Transactions on Magnetics, Vol. 43, No. 4, 2007, pp. 1273-1276. Presented at 12th Biennial IEEE Conference on Electromagnetic Field Computation (CEFC 2006), Miami, Florida USA, 30.04-03.05.2006.
T. Steinmetz, M. Helias, G. Wimmer, L.O. Fichte, M. Clemens, Quasistatic Electric Field Computations with Discrete Electromagnetism Formulations, IEEE Transactions on Magnetics, Vol. 42, No. 4, pp. 755-758, April 2006.
G. Wimmer, T. Steinmetz, M. Clemens, Reuse, Recycle, Reduce (3R) - Strategies for the Calculation of Transient Magnetic Fields, Applied Numerical Mathematics, Vol. 59, pp. 830-844, 2009, doi: 10.1016/j.apnum.2008.03.015. Presented at the NUMDIFF-11 conference held in Halle, Germany, 04.-08.09.2006.
T. Steinmetz, G. Wimmer, M. Clemens, Numerical Simulation of Electro-Quasi-static Fields Using Advanced Subspace Projection Techniques, Advances in Radio Science, Vol. 4, No. 1, 2006, pp. 49-53, (Presented at Kleinheubacher Tagung (KH 2005), Numerische Verfahren zur Berechnung elektromagnetischer Felder und Wellen, Miltenberg, Germany, 26.-30.09.2005).
T. Steinmetz, N. Gödel, G. Wimmer , M. Clemens, S. Kurz, M. Bebendorf, Efficient Symmetric FEM-BEM Coupled Simulations of Electro-Quasistatic Fields, IEEE Transactions on Magnetics, Vol. 44, No. 6, 2008, pp. 1346-1349.
G. Wimmer, T. Steinmetz, M. Clemens, Error Control Schemes for Adaptive Time Integration of Magnetodynamic Systems with Variable Spatial Mesh Resolution, The 12th International IGTE Symposium on Numerical Field Calculation in Electrical Engineering(IGTE 2006), Graz, Austria, 17.-20.09.2006. Conference Proceedings, pp. 192-197, Verlag der Technischen Universität Graz (ISBN-10: 3-902465-56-5; ISBN-13: 978-3-902465-56-6). Full paper in COMPEL Vol. 26, No. 3, 2007, pp. 758-772.
M. Clemens, M. Helias, T. Steinmetz, G. Wimmer, Multiple Righthand Side Techniques for the Numerical Simulation of Transient Quasistatic Electric and Magnetic Fields, Journal of Computational and Applied Mathematics, Vol. 215, 2008, pp. 328-338 (Presented at 3rd International Conference on Advanced Computational Methods in Engineering (ACOMEN 2005, Gent, Belgium, 30.05.-02.06.2005).
M. Clemens, J. Lang, D. Teleaga, G. Wimmer, Adaptivity in Space and Time for Magnetoquasistatics, Journal of Computational Mathematics, Vol 27, 2009, pp. 642-656.
M. Clemens, J. Lang, D. Teleaga, G. Wimmer, Transient 3D Magnetic Field Simulation with Combined Space and Time Adaptivity for Lowest Order WFEM Formulations, IET Science, Measurement & Technology, Vol. 3, No. 6, 2009, pp. 1-7.
P. Zhou, D. Lin, G. Wimmer, Z. Cendes, Determination of d-q Axis Parameters of Interior Permanent Magnet Machines, 17th Conference on the Computation of Electromagnetic Fields (COMPUMAG 2009), Florianopolis, Brazil, 22.-26.11.2009. Published in IEEE Transactions on Magnetics, Vol. 46, No. 8, pp. 3125-3128, August 2010.