KONWIHR Project BESTWIHR

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BESTWIHR: Lattice Boltzmann Automatas and Applications in Fluid Mechanics

Project summary

Numerical simulations of hydrodynamic phenomena become more and more popular both for research activities and for industrial applications. This can be seen in the huge number of new projects in aerodynamics, chemical engineering or civil engineering, to mention only a few.

There exist already many numerical tools to solve such problems especially in the field of aerodynamic. But motivated by the requirements in fields outside this classical applications there exist also attempts to introduce a more rigorous modelling of transport phenomena for many years. One example are the cellular automata. These developments have lead to a new class of simulation tools, the so called Lattice-Gas or Lattice Boltzmann Methods. They base on a discretization of the Boltzmann equation. Although this methods are discovered very recently they were applied to chemical engineering problems or flow in complex geometries with considerable success. But also in traditional fields as aerodynamic they revealed an noticeable potential.

From the beginning the LSTM was an active part in this developments. Our institute made contributions in methodical aspects as well as to the application of the methods to real applications in aerodynamic and chemical engineering. This was done in cooperation with further institutes in Erlangen and Munich but also together with research groups all over the world.

The Lattice-Gas/Lattice-Boltzmann professional of the institute ought to become the base of a new KONWIHR project in with a new research group is established to develop improved simulation tools and to implement them in further technically and scientifically relevant applications. This aims are to be realized by seasoned researchers all financed by running research projects. Main targets are the integration of new techniques of software engineering, the optimisation of the algorithms to the available computer architectures, the combination of the local skills to establish a centre of applied research in this field in Erlangen including the education of the students to ensure continuation of the research in the future.

Lattice-Boltzmann methods as implemented and optimized in BESTWIHR are not limited to turbulence research. In fact they are also capable to simulate flow in complex geometries such as pulsing blood flow in aneurysm.

KONWIHR funding and follow-up projects

  • initial KONWIHR funding: 01/2001 - 12/2003

Contact:

  • Prof. Dr. F. Durst, Lehrstuhl für Strömungsmechanik, Uni-Erlangen

Selected publications

  • T. Zeiser: Simulation und Analyse von durchströmten Kugelschüttungen in engen Rohren unter Verwendung von Hochleistungsrechnern, Dissertation, Technische Fakultät, Universität Erlangen-Nürnberg, Verlag Dr. Hut (München), (2008). External link: E-Diss
  • T. Zeiser: Simulation und Analyse von durchströmten Kugelschüttungen in engen Rohren unter Verwendung von Hochleistungsrechnern, Dissertation, Technische Fakultät, Universität Erlangen-Nürnberg, Verlag Dr. Hut (München), (2008). External link: E-Diss
  • P. Lammers: Direkte numerische Simulationen wandgebundener Strömungen kleiner Reynoldszahlen mit dem Lattice Boltzmann Verfahren, Dissertation, Technische Fakultät, Universität Erlangen-Nürnberg, (2004). External link: E-Diss