Difference between revisions of "Multiphase Flow in Porous Media"
Line 8:  Line 8:  
dynamic effects like trapping nor varying residual saturations have a  dynamic effects like trapping nor varying residual saturations have a  
substantial impact on the solutions. Alternative theories range from  substantial impact on the solutions. Alternative theories range from  
−  purely heuristic hysteresis models, as well  +  purely heuristic hysteresis models (e.g. Mualem 1974), as well 
−  as adding terms to equations to e.g. include dynamic effects to adding phases and equations into  +  as adding terms to equations to e.g. include dynamic effects, (e.g. Hassanizadeh et. al. (1993) to adding phases and equations into the model, e.g. interfacial areas (Niessner et. al. (2008)). 
−  the model, e.g. interfacial areas.  
== Our Project ==  == Our Project == 
Revision as of 16:37, 27 April 2009
Introduction
Many natural and technical processes involve multiphase flow processes in porous media. Despite that fact fundamental concepts of twophase flow on macroscopic scales still remain unclear. The predictive power of the most commonly used extended multiphase Darcy theory is at best limited to simple problems where neither hysteresis nor dynamic effects like trapping nor varying residual saturations have a substantial impact on the solutions. Alternative theories range from purely heuristic hysteresis models (e.g. Mualem 1974), as well as adding terms to equations to e.g. include dynamic effects, (e.g. Hassanizadeh et. al. (1993) to adding phases and equations into the model, e.g. interfacial areas (Niessner et. al. (2008)).
Our Project
It is known that percolating and nonpercolating fluid parts show fundamental different behavior (e.g. Abrams (1975), Avraam et al. (1995), Taber (1969), Wyckoff (1936)) and a macroscopic model which takes into account the difference of nonpercolating and percolating fluid parts was proposed by R. Hilfer (1998) and elaborated in succeeding works (see below).
Current Coworkers
 Prof. Dr. Rudolf Hilfer, Project supervisor
 Florian Doster, PhD Student
Collaborations
 The project is part of Nupus (International Research Training Group 'Nonlinearities and Upscaling in PoroUS media').
 Prof. Dr. Paul Zegeling, Department of Mathematics, Faculty of Sciences, Utrecht University
 Prof. Dr. Majid Hassanizadeh, Department of Earth Sciences, Faculty of Geosciences, Utrecht University
Publications

Unknown author.
Unknown title.