Wednesday
01
DEC

04:15 PM

Model Order Reduction Methods for Time-Harmonic Wave Problems

IWR Colloquium & Romberg Inaugural Lecture

Prof. Dr. Francesca Bonizzoni, Augsburg University, Institute of Mathematics, Romberg Visiting Scholar

Many engineering applications require the numerical evaluation of time-harmonic wave propagation problems over a range of frequencies. The most used technique to discretize partial differential equations is the finite element method. Due to the oscillations of analytical solutions the finite element discretization often becomes computationally expensive.

Model order reduction methods provide reliable approximations of the solution at low computational cost. In particular, they allow very fast responses both for real-time and multi-query contexts.

This talk deals with novel model order reduction techniques tailored to time-harmonic wave problems relying only on a precomputed set of snapshots, they present great flexibility, since they allow the construction of a surrogate starting from snapshots obtained via black-box solvers (e.g., commercial software).

The method’s efficiency is investigated in several examples, including transmission-reflection and scattering problems. Especially in the context of optimal control problems, where standard numerical techniques are unfeasible, the employment of surrogate models is crucial.

IMPORTANT: in person meeting changed to ONLINE ONLY meeting. Unfortunately this meeting will only take place online due to the COVID-19 situation.

Address

Mathematikon

Conference Room / 5th Floor, Room 5/104

Im Neuenheimer Feld 205

69120 Heidelberg

Homepage Event

https://typo.iwr.uni-heidelberg.de/events/iwr-colloquium

Organizer

Interdisciplinary Center for Scientific Computing (IWR)

Homepage Organizer

https://typo.iwr.uni-heidelberg.de/home

Contact

Dr. Dirk Rehn

Alle Termine der Veranstaltung 'Model Order Reduction Methods for Time-Harmonic Wave Problems':

Wednesday 01st December 2021, 04:15 PM

Model Order Reduction Methods for Time-Harmonic Wave Problems

Prof. Dr. Francesca Bonizzoni, Augsburg University, Institute of Mathematics, Romberg Visiting Scholar

Wednesday 19th January 2022, 04:15 PM

„Large-Scale Optimization and Applications”

Prof. Dr. Roland Herzog, Heidelberg University, Interdisciplinary Center for Scientific Computing (IWR)

Wednesday 16th February 2022, 04:15 PM

High Dimensional Approximation and Sampling in Uncertainty Quantification

Prof. Dr. Jakob Zech, Heidelberg University, Interdisciplinary Center for Scientific Computing (IWR)