Dr. Stefanie Günther

(Old website of a former member, who has left MathCCES, see also list of former members)

I have moved to TU Kaiserslautern: http://www.scicomp.uni-kl.de/team/guenther/
New email address: stefanie.guenther@scicomp.uni-kl.de

• Simultaneous One-shot optimization with unsteady PDEs
• Optimal control of unsteady flows
• Discrete and continuous adjoint method for sensitivity computation of steady and unsteady PDEs
• One-shot optimization with chaotic dynamics
• Multigrid-in-time integration methods for unsteady PDEs
• Parallel-in-time One-shot optimization with unsteady PDEs

• Since 2017: Postdoc at Chair for Scientific Computing, TU Kaiserslautern
• 2017: PhD in Mathematics with N. Gauger, RWTH Aachen University
• 2014 - 2017: Research assistant at Chair of Scientific Computing, TU Kaiserslautern
• 2012 - 2014: Research assistant at MATHCCES, RWTH Aachen University
• 2012: Diploma (equiv. to M.Sc.) in Applied Mathematics with V. Schulz, University of Trier
• 2006 - 2012: Studies in Applied Mathematics with minor in Computer Science, University of Trier

• S. Günther, N.R. Gauger, J.B. Schroder: A Non-Intrusive Parallel-in-Time Approach for Simultaneous Optimization with Unsteady PDEs, Optimization Methods and Software, submitted (2018), arXiv preprint: https://arxiv.org/abs/1801.06356
• S. Günther: Simultaneous Optimization with Unsteady Partial Differential Equations, PhD Thesis, RWTH Aachen University, 2017
• S. Günther, N.R. Gauger, J.B. Schroder: A Non-Intrusive Parallel-in-Time Adjoint Solver with the XBraid Library, Computing and Visualization in Science, accepted for publication (2017), arXiv preprint: https://arxiv.org/pdf/1705.00663.pdf
• S. Günther, N.R. Gauger, Q. Wang: A framework for simultaneous aerodynamic design optimization in the presence of chaos, Journal of Computational Physics (2017), pp. 387-398, DOI 10.1016/j.jcp.2016.10.043, http://www.sciencedirect.com/science/article/pii/S0021999116305411
• S. Günther, N.R. Gauger, Q. Wang: Simultaneous single-step one-shot optimization with unsteady PDEs, Journal of Computational and Applied Mathematics, Vol. 294, pp. 12-22, 2016, http://dx.doi.org/10.1016/j.cam.2015.07.033, arXiv preprint
• S. Günther, N.R. Gauger, Q. Wang: Extension of the One-Shot Method for Optimal Control with Unsteady PDEs, Computational Methods in Applied Sciences, Vol. 36, pp. 127-142, 2015
• T. Bosse, N.R. Gauger, S. Günther, L.Kaland et al.: Optimal design with bounded retardation for problems with non-separable adjoints, International Series of Numerical Mathematics, Vol. 165, pp. 67-84, 2014
• T. Bosse, N.R. Gauger, A.Griewank, S. Günther, V.Schulz: One-shot approaches to design optimization, International Series of Numerical Mathematics, Vol. 165, pp. 43-66, 2014
• S. Günther: Simultane Optimierung unter PDE-Nebenbedingungen - Ein Vergleich zweier One-Shot-Methoden, Diploma Thesis, University of Trier, 2012. thesis

• S. Günther, N.R. Gauger, J.B. Schroder: Time-Parallel Simultaneous One-shot Optimization, 6th Workshop on Parallel-in-Time Integration Methods, Okt 2017, Monte Verita, Swizerland
• S. Günther, N.R. Gauger, J.B. Schroder, Q. Wang: Simultaneous Parallel-in-Time Optimization with Unsteady PDEs, SIAM CSE Conference, Feb 2017, Atlanta, USA
• S. Günther, N.R. Gauger, J.B. Schroder: Adjoint Sensitivity Computation for the Parallel Multigrid Reduction in Time Software Library XBraid, 5th Workshop on Parallel-in-Time Integration, Nov 2017, Banff, Canada
• S. Günther, N.R. Gauger, Q. Wang: Simultaneous PDE-constrained Optimization in Chaotic Dynamics - A framework for optimal control of highly separated flows, GAMM Annual Meeting, March 2016, Braunschweig, Germany
• S. Günther, N.R. Gauger, Q. Wang: Fixed-Point Iterations for Simultaneous One-Shot Optimization of Unsteady Flows, SIAM CSE 2015, March 14-18, Salt Lake City, USA
• S. Günther, N.R. Gauger, Q. Wang: Towards Efficient One-Shot Optimization with Unsteady Navier-Stokes Equations, GAMM 2014, March 10-14 2014, Erlangen, Germany
• S. Günther, N.R. Gauger, Q. Wang: Extension of the One-Shot Method for Optimal Control with Unsteady PDEs, EUROGEN 2013, October 7-10 2013, Las Palmas de Gran Canaria, Spain
• S.Günther, N.R. Gauger: One-Shot Optimization with unsteady PDE constraints, Massachusetts Institute of Technology, Department of Aeronautics and Astronautics, March 04 2014, Cambridge, USA
• S. Günther, E. Özkaya, A. Nemili, N.R. Gauger: Optimal Active Separation Control on Airfoils using Discrete Adjoint Approach, SIAM CSE 2013, February 25 - March 1 2013, Boston, USA