| Issue |
Europhys. Lett.
Volume 76, Number 5, December 2006
|
|
|---|---|---|
| Page(s) | 829 - 835 | |
| Section | Electromagnetism, optics, acoustics, heat transfer, classical mechanics, and fluid dynamics | |
| DOI | https://doi.org/10.1209/epl/i2006-10372-5 | |
| Published online | 16 November 2006 | |
Finite-difference lattice Boltzmann approach to pressure-driven microchannel flow with variable temperature
Center for Fundamental and Advanced Technical Research, Romanian Academy Bd. Mihai Viteazul 24, RO-300223 Timişoara, Romania
Received:
12
June
2006
Accepted:
17
October
2006
Diffuse reflection boundary conditions are introduced in a two-dimensional thermal lattice Boltzmann model to allow for variable fluid density along the walls. The capability of this model to capture the main characteristics of pressure-driven flow in microchannels (temperature drop, rarefaction effects, velocity slip and the minimum of the flow rate as a function of the Knudsen number) is checked.
PACS: 47.45.-n – Rarefied gas dynamics / 47.11.-j – Computational methods in fluid dynamics / 67.40.Hf – Hydrodynamics in specific geometries, flow in narrow channels
© EDP Sciences, 2006
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