Non-equilibrium interphase heat and mass transfer during two-phase flow in porous media—Theoretical considerations and modeling |
| |
| Authors: | Jennifer Niessner S Majid Hassanizadeh |
| |
| Institution: | 1. Institute of Hydraulic Engineering, University of Stuttgart, Germany;2. Environmental Hydrogeology Group, Department of Earth Sciences, Utrecht University, The Netherlands |
| |
| Abstract: | Mass and heat transfer occurring across phase-interfaces in multi-phase flow in porous media are mostly approximated using equilibrium relationships or empirical kinetic models. However, when the characteristic time of flow is smaller than that of mass or heat transfer, non-equilibrium situations may arise. Commonly, empirical approaches are used in such cases. There are only few works in the literature that use physically-based models for these transfer terms. In fact, one would expect physical approaches to modeling kinetic interphase mass and heat transfer to contain the interfacial area between the phases as a variable. Recently, a two-phase flow and solute transport model was developed that included interfacial area as a state variable 36]. In that model, interphase mass transfer was modeled as a kinetic process. |
| |
| Keywords: | Two-phase flow Porous media Interfacial area Kinetic mass transfer Thermal non-equilibrium |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
