Adaptive Lattice Boltzmann simulations of ...

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XVI International Conference on Computational Methods in Water Resources (CMWR-XVI) Ingeniørhuset

Adaptive Lattice Boltzmann simulations of free-surface flows
Author:Jonas Toelke <toelke@cab.bau.tu-bs.de> (TU Braunschweig)
Manfred Krafczyk <kraft@cab.bau.tu-bs.de> (TU Braunschweig)
Presenter:Jonas Toelke <toelke@cab.bau.tu-bs.de> (TU Braunschweig)
Date: 2006-06-18     Track: Special Sessions     Session: Boltzmann Methods in Water Resources
DOI:10.4122/1.1000000685

Recently Lattice-Boltzmann (LB) methods have matured as complementary models and simulation approaches for solving complex flow problems in engineering. In our work we extend an existing laminar free surface LB model recently developed by Koerner et al. by a Large Eddy model to describe turbulent flows and validate our model by threedimensional computations of a rigid body impact on a shoreline and the resulting wave generation. The results are compared to experimental and numerical data obtained by Liu et al. In addition, we present an adaptive 3D simulation of the classical dam break problem.