Abstract
We discuss the implementation of the recently developed Langmuir slip model, which possesses a clearer physical picture than the popularly used Maxwell slip model, for the lattice Boltzmann (LB) method to capture velocity slip and temperature jump in microfluidics. The implementation of this scheme is straightforward even when boundary walls do not run coincidentally along the lattice grids. Some previous LB boundary schemes for macroscopic thermal flows can be naturally recovered from the present scheme when the Knudsen number Kn → 0. The feasibility and the capability of the present scheme for thermal micro-flow simulations are explored by numerical experiments.
Original language | English |
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Pages (from-to) | 227-235 |
Number of pages | 9 |
Journal | International Journal of Heat and Fluid Flow |
Volume | 31 |
Issue number | 2 |
Early online date | 6 Jan 2010 |
DOIs | |
Publication status | Published - Apr 2010 |
Externally published | Yes |
Keywords
- Langmuir slip model
- Lattice Boltzmann method
- Micro thermal flow
ASJC Scopus subject areas
- Condensed Matter Physics
- Mechanical Engineering
- Fluid Flow and Transfer Processes