In this paper, we present a front-tracking method containing an accurate representation of solid surface condition, and simulate a drop sliding down an inclined plate employing some slip models. Numerical results are compared with experimental observations by Le Grand et al. (Journal of Fluid Mechanics, 2005), and then which slip model is well-suited is examined. Drop shapes, in particular advancing and receding contact angles, and drop velocity reproduced by our simulations without explicit slip model are qualitatively good agreement with experimental observations for capillary number Ca<0.01.

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