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This proposal aims at modeling the effects of air pressure on drop impact on dry surfaces with difference wetting characteristics and investigating drop dynamics after impact under different conditions. During the second year, we focused on the effects of wettability on drop impaction process and have improved our multi-phase lattice Boltzmann method (LBM) for higher impact velocity. We proposed three types of polynomial boundary conditions based on the wall free energy approach for the accurate prediction of the contact angle and density distribution close to a solid surface. We have studied micron-sized drop impact on dry surfaces with different wetting properties and fundamental flow physics in bubble rising problems. We are developing a new formulation for the collision operator in LBM for improved stability at higher impact velocity and unstructured finite element LBM to resolve patterned substrate.