Artículos de revistas
Fluids confined in wedges and by edges: From cluster integrals to thermodynamic properties referred to different regions
Fecha
2015-06Registro en:
Urrutia, Ignacio; Fluids confined in wedges and by edges: From cluster integrals to thermodynamic properties referred to different regions; American Institute of Physics; Journal of Chemical Physics; 142; 24; 6-2015; 1-7; 244902
0021-9606
CONICET Digital
CONICET
Autor
Urrutia, Ignacio
Resumen
Recently, new insights into the relation between the geometry of the vessel that confines a fluid and its thermodynamic properties were traced through the study of cluster integrals for inhomogeneous fluids. In this work, I analyze the thermodynamic properties of fluids confined in wedges or by edges, emphasizing on the question of the region to which these properties refer. In this context, the relations between the line-thermodynamic properties referred to different regions are derived as analytic functions of the dihedral angle α, for 0 < α < 2π, which enables a unified approach to both edges and wedges. As a simple application of these results, I analyze the properties of the confined gas in the low-density regime. Finally, using recent analytic results for the second cluster integral of the confined hard sphere fluid, the low density behavior of the line thermodynamic properties is analytically studied up to order two in the density for 0 < α < 2π and by adopting different reference regions.