Monte Carlo simulations of the wetting phenomena at non-planar substrate surfaces

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By means of grand canonical ensemble Monte Carlo (GCEMC) simulations wetting of nonplanar substrate surface by a 'simple', classical fluid is investigated. The substrate is modelled as a semiinfinite solid. Following previous work both temperature and strength of the fluid-substrate interaction will be tuned such that prewetting and/or layering transitions occur in the limit of a planar substrate. The impact of substrate corrugation on these surface-induced phase transitions will be studied. In a second sequence of calculations the substrate curvature will be varied over a wider range. Following phenomenological arguments put forth by Rascón and Parry one expects a wealth of surface-induced phase transitions to occur. These conjectures are to be tested by the present molecular approach based upon GCEMC simulations.