TVD-based Finite Volume Methods for Sound-Advection-Buoyancy Systems
Staff - Faculty of Informatics
Start date: 27 March 2014
End date: 28 March 2014
The Faculty of Informatics is pleased to announce a seminar given by Prof. Jörg Wensch
DATE: Thursday, March 27th, 2014
PLACE: University of Lugano, room 402, main building, 4th floor (Via G. Buffi 13)
TIME: 09:30
ABSTRACT:
In Computational Fluid Dynamics, the simulation of compressible, inviscid now is one of the most challenging tasks because it exhibits the most complex dynamics. We consider here buoyancy-sound-advection systems for stratified fluids.
These systems exhibit wave type solutions, which impose CFL-based restrictions on the time step size. Buoyancy, sound and advection cause separate restrictions each on their own scale.
We develop TVD based Finite Volume Methods where a splitting approach allows different treatment of fast and slow waves.
The methods are optimized with respect to order and maximum stable CFL numbers. Different scenarios for the scales of sound, advection and buoyancy are discussed.
BIO:
Since 2006: Professor at Technical University Dresden
2004 - 2006: Researcher at University of Potsdam
2004: Habilitation at University Halle
1997: PhD at University Halle
1992: Diploma in Mathematics at University Halle
HOST: Dr. Daniel Ruprecht
