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The Chair for Systemsimulation (LSS) deals with simulation methods for physical,
continuous systems and their implementation on modern non-standard architectures and high
performance computers. Special interest is paid to the development of efficient and parallel
algorithms for the solution of simulation problems.
Our region of interest is the area of continuous simulation and includes aspects of modeling, the implementation of simulation models into computer programs and calculation for given applications.
Computational power is still growing and can be used for increasingly complex and hopefully realistic models so that the demand for efficient implementation of the calculations stays high. Those efficient methods and their implementation are the main areas of research at the Chair for System Simulation.
Multilevel methods are in the main focus of research. They have optimal algorithmical
complexity, with other words their solution time of multilevel methods is proportional to the problem size what allows the treatment of problems that are out of range with other methods. Multilevel methods have become essential on super computers and the respective problem sizes. However, the efficient implementation stays a challenge if the method is combined with adaptive refinement. Besides the development of new algorithms also questions of software engineering play an increasing role. An object-oriented approach that would be ideal for the complex programming task, does (nowadays) not meet the performance requirements and therefore mixed techniques are applied.
Apart from developing new algorithms also the influence of the computer architecture on the implementation is examined. One focal point deals with the optimal usage of the memory hierarchy, especially the caches, of modern computers. Furthermore, workstation clusters, i.e. parallel computers that are build of standard workstations and are relatively cheap, are of interest.
Another point of major interest are Lattice Boltzmann
methods. These have proved to be robust and flexible discretization schemes for multi-phase
flows. In cooperation with chairs from mathematics and engineering these are extented by models
for simulating any kind of flows (e.g. nano particles and blood).
A third research topic is the numerical simulation of lasers and solar cells. The LSS
investigates the temporal behavior of lasers and solar cells in 3D and developes new methods for
the analysis of those. In the end, these techniques enable the optimization of the quality of the
components.
Cooperation partners
The chair has more than 60 national and international cooperations with partners from industry as well
as from research. The interactive map below shows those.
ShowLSS cooperations on a larger map.
This map is powered by Google Maps. The Chair for System Simulation is not liable for its content nor for other external content.
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