Título
Surface tension of O2-Ar, N2-Ar and O2-N2-Ar mixtures
Autor
Mauricio Garcia-Martinez
JORGE LOPEZ LEMUS
BENJAMIN IBARRA TANDI
Nivel de Acceso
Acceso Abierto
Materias
Resumen o descripción
articulo de investigacion
The surface tension of some binary and ternary mixtures was calculated by means of molecular dynamics simulations in a canonical set. The analyzed mixtures were oxygen-argon, nitrogen-argon and oxygen-nitrogenargon. The force field for argon was recalculated in order to reproduce the experimental surface tension. The corresponding force fields for O2 and N2 were taken from a previous work [Mol. Simul. 45 (2019) 958-966], where it was shown that such force fields reproduce the experimental surface tension curves, as pure fluids. The nitrogen-argon surface tension was calculated for several mole fractions of argon. The obtained curve was compared with those experimental data and a good agreement was found. The standard Lorentz-Berthelot combining rules were employed. For the oxygen-argon mixture it was necessary to modify the cross term of the combining rules in order to reproduce theoretical and experimental data. The surface tension of the ternary mixture was also estimated varying the mole fraction of argon at a certain concentration of oxygen and nitrogen, previously adjusted. Several temperatures were used in order to show a tendency mostly at relatively low temperatures. After comparing the available experimental data, which are scarce, a good agreement was observed.
Editor
ECORFAN Journal-Ecuador
Fecha de publicación
13 de diciembre de 2019
Tipo de publicación
Artículo
Recurso de información
Fuente
1390-9959
Idioma
Inglés
Relación
2019
Audiencia
Estudiantes
Investigadores
Repositorio Orígen
REPOSITORIO INSTITUCIONAL DE LA UAEM
Descargas
79