Abstract
In this paper, a first-order slip boundary condition is derived using the Chapman-Enskog solution of the Boltzmann equation. In comparison with the existing slip models such as first, second, and 1.5-order slip models, the Poiseuille flow rate predicted by the new slip model shows better agreement with that calculated by the linearized Boltzmann equation. The slip boundary condition is also applied to predict the pressure field in gas lubrication problems.
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