Resumen

GARCIA, Janneth M  y  GARCIA, Francisco. Effect of the Mixture Viscosity and the Mixture Density on the Pressure Gradient of Gas-Liquid Homogeneous Flow in Horizontal Pipelines. Inf. tecnol. [online]. 2009, vol.20, n.4, pp. 95-106. ISSN 0718-0764.  doi: 10.4067/S0718-07642009000400011.

In this work the performance of 76 pressure gradient homogeneous models is evaluated in order to determine the experimental pressure gradient reported in a database consisting of 2415 gas-liquid two-phase flow experiments in horizontal pipes.  These models were formulated starting from 4 mixture density equations combined with 19 mixture viscosity equations. To study the mixture viscosity and the mixture density effect in the pressure gradient, using the homogeneous model, it is observed that the best model gave an average absolute error of 25.7%, while the worst model obtained an error close to 2000%.  The obtained results indicate that the performance of the gas-liquid two-phase flow pressure gradient homogeneous model depends significantly on the appropriate selection of the mixture viscosity and the mixture density equations.

Palabras clave : pressure gradient; mixture viscosity; mixture density; gas-liquid flow.