A distributed-site model for non-equilibrium dissolution of multi-component residually trapped NAPL in a column test

[摘要] This thesis addresses the modeling of the dissolution of residually-trapped multi-component non-aqueous phase liquids (NAPLs) from a porous medium. As part of this work, a model was constructed in which the mass transfer behavior of the NAPL is characterized by a probability density function (pdf) which describes the initial distribution of residual NAPL ;;blob;; volumes. Mass transfer from these trapped NAPL ;;spheres;; is simulated using an empirical relationship for the Sherwood Number, a linear concentration driving force, and multi-component solubility effects. This ;;Distributed-Site;; model is then used to match two sets of dissolution data from a laboratory column test.

[发布机构] Rice University