Variable slip coefficient in binary lattice Boltzmann models

• Authors: Lajos Szalmás
• Languages of publication: EN

Abstracts

EN

We present a new method in order to obtain variable slip coefficient in binary lattice Boltzmann models to simulate gaseous flows. We present the Boundary layer theory. We study both the single-and multi-fluid BGK-type models as well. The boundary slip and the Knudsen layer are analyzed in detail. Benchmark simulations are carried out in order to compare the analytical derivation with the numerical results. Excellent agreement is found between the two analytical formalism and the numerical simulations.

Keywords

EN

lattice Boltzmann; binary mixtures; slip coefficient; microflows; Knudsen number

Discipline

• 05.20.Dd: Kinetic theory(see also 51.10.+y Kinetic and transport theory of gases)
• 47.11.-j: Computational methods in fluid dynamics
• 47.45.Ab: Kinetic theory of gases

• Publisher: De Gruyter Open
• Journal: Open Physics
• Year: 2008
• Volume: 6
• Issue: 4
• Pages: 786-791

Dates

published

1 - 12 - 2008

online

27 - 9 - 2008

Contributors

author

Lajos Szalmás

• Department of Physics, University of Rome “La Sapienza”, Piazzale Aldo Moro 2, Rome, 00185, Italy

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Identifiers

DOI

10.2478/s00000-008-0103-6