2001-05-23
10:15 at ML J 37.1

Stabilization of the lattice Boltzmann simulations: how and why entropy can help?

Santosh Ansumali

Institute of Polymers, ETH Zentrum, Zurich, Switzerland

In this talk, we review the construction of the Lattice Boltzmann method equipped with the H theorem. Based on entropy functions whose local equilibria are suitable to recover the Navier-Stokes equations in the framework of the Lattice Boltzmann method, we derive a collision integral which enables simple identification of transport coefficients, and which circumvents construction of the equilibrium. We discuss performance of this approach as compared to the standard realizations.
[Note: this is the part of admission examination of Santosh]