Date:	Wed, March 9, 2016
Time:	11:15
Place:	Research I Seminar Room

Abstract: Many real-world problems in chemical engineering and biotechnology cannot be solved with the help of today's measurement and numerical simulation technology, despite the significant progress in both areas. This holds particularly for the detection of time-dependent flows in complex flow domains, in which the geometry is coupled with the flow behavior, through complex biological, chemical or mechanical processes at the flow-solid interface. In this area there are a number of unanswered fundamental questions, which can only be answered by a combined method of measurement and simulation techniques. For it, inverse 3D fluid flow problems needs to be solved. However, to this day, such methods are only partially explored and computational tools are hardly available, both, most likely, because of the enormous associated computational cost.

In this talk, a holistic simulation and optimization approach based on the Lattice Boltzmann Methods (LBM) is presented and the corresponding extensive parallel software is introduced. A demonstration of the open source library OpenLB (www.openlb.net) relies on a number of process engineering applications, such as a particle separator with a turbulent particle flow, magnetic separation with adsorption, growth of algae in photobioreactors or the turbulent simulation of a safety valve. The final focus is placed on a combined simulation and measurement approach, which expands and fundamentally improves the possibilities of current 3D flow MRI measuring techniques by simulation technology.

The talk is based on joint work with Willy Dörfler, Thomas Henn, Marie-Luise Maier, Albert Mink, Hermann Nirschl, Gudrun Thäter, and Robin Trunk.