期刊
INTERNATIONAL JOURNAL OF MODERN PHYSICS C
卷 18, 期 1, 页码 15-24出版社
WORLD SCIENTIFIC PUBL CO PTE LTD
DOI: 10.1142/S0129183107010358
关键词
lattice Boltzmann; slip-flow; microflows
We present a new boundary condition in the lattice Boltzmann method to model slip flow along curved boundaries. A requirement is formulated for the distribution functions based on the tunable momentum balance at the walls, which is shown to be equivalent to the constraints on the second moment. Numerical simulation of plane Couette flow in inclined channels and cylindrical Couette flow shows excellent agreement with the analytical results in the nearly continuum regime. Orientation effects on the velocity field are completely avoided.
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