By Dr. Jan Giesselmann (University of Stuttgart, Germany)
We are interested in numerical simulations of compressible fluid flows of chemically reacting mixtures. In this case, complex models are needed to precisely describe all flow regimes. If, however, the mixture is in chemical equilibrium much simpler models can be used. In many simulations the complex models are actually only needed in a small part of the computational domain while on large parts simpler models can be employed without causing significant errors. In this situation, it is desirable to decide in a reliable and automatable way which model is used in which part of the computational domain. We will present a posteriori error estimators for the modeling error, i.e., the difference between solutions to the complex and a simplified model as a tool for dynamic model adaptation in numerical simulations of compressible fluid flows.
Biography: Jan Giesselmann studied mathematics at University of Bielefeld. After completing his studies he moved to University of Stuttgart where he obtained his PhD in 2011. After spending some time as researcher at Weierstrass Institute (Berlin) and University of Crete he returned to University of Stuttgart where he defended his habilitation in 2015.
For more info contact: Prof. Athanasios Tzavaras: email: email@example.com
Date: Tuesday 28th Feb 2017
Time: 03:00 PM - 04:00 PM
Location: Building 1, Level 3, Room 3422
Refreshments: Will be served at 2:45 pm