IWNET12
IWNET12
Simulation of turbulent ows with the entropic lattice Boltzmann method
Ilya Karlin1
1 ETH Zurich, Switzerland
Abstract
At variance with previous Lattice Boltzmann methods, the entropic version permits to describe the non-linear
dynamics of short scales in a controlled and stable way. In this talk, I shall discuss the current status of the
lattice Boltzmann method as an alternative for the direct numerical simulation (DNS) of high Reynolds number
ow phenomena. After reviewing a recent work on 3D DNS of turbulent vortex ow with higher-order LBGK
scheme [Chikatamarla et al, J. Fluid Mech. (2010)], I shall describe new boundary conditions for sub-grid
simulations of wall-bounded turbulent ows. Open questions which are needed to be addressed in order to put
lattice Boltzmann methods as an alternative DNS shall also be discussed.
E-mail: karlin@lav.mavt.ethz.ch

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