Bulletin of the American Physical Society
2024 APS March Meeting
Monday–Friday, March 4–8, 2024; Minneapolis & Virtual
Session F40: DFD I
8:00 AM–11:00 AM,
Tuesday, March 5, 2024
Room: 103F
Sponsoring
Unit:
DFD
Chair: Anushka Anushka, IIT Kharagpur
Abstract: F40.00008 : Derivation of lattice Boltzmann from coarse graining Molecular Dynamics and lattice gases
9:24 AM–9:36 AM
Presenter:
Alexander Wagner
(North Dakota State University)
Authors:
Alexander Wagner
(North Dakota State University)
Aleksandra Pachalieva
(Los Alamos National Laboratory)
Noah A Seekins
(North Dakota State University)
Numerical methods span a similar scale from Molecular Dynamics over lattice gases and lattice Boltzmann to tradtional CFD discretizations of the macroscopic equations. We are focusing in this talk on deriving lattice gas and lattice Boltzmann methods directly from Molecular Dynamics simulations. Such an approach is a promising alternative to deriving lattice Boltzmann methods from demanding a match to macroscopic equations, and this approach suggests interesting alternative implementations. In particular this approach suggested novel integer lattice gases that can recover modern lattice Boltzmann methods as their hydrodynamic limit. We wil report on some recent progress in this area.
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