Similarity solutions for solute transport in fractal porous media using a time- and scale-dependent dispersivity
نویسندگان
چکیده
منابع مشابه
Pore scale simulation of solute transport in fractured porous media
[1] We investigate the effects of the porosity (and thus permeability) of porous matrix and the fracture aperture on transport in fractured porous media. We do so with detailed lattice Boltzmann simulations on constructed porous media with a single fracture. Both plume spatial moments (the average plume velocity and the dispersion coefficients) and mass transfer coefficients between the facture...
متن کاملA hybrid multi-time-step framework for pore-scale and continuum-scale modeling of solute transport in porous media
Understanding transport processes in porous media is vital to many scientific and industrial applications. For instance, predicting the fate of chemical contaminants in subsurface, and simulating various processes in geological carbon-dioxide sequestration are two of the most prominent examples. Considering the dimensions of a typical spatial domain in such problems, usually in the order of kil...
متن کاملSolute Transport in Heterogeneous Porous Media
Solute mass transport in porous media is strongly correlated with pore fluid flow. The analysis of solute transport is an effective means for studying medium heterogeneities. In this study, we discuss the effects of heterogeneity on the tracer transport. Assuming steady fluid flow, we have simulated tracer transport in various permeability heterogeneities. The results show that the tracer distr...
متن کاملNew Approach for Approximation of Dispersivity in Porous Media
This paper presents a simple yet powerful original approach for approximating dispersivity in porous media. The key to this approach is both use of least-squares criterion and image processing technique. Two dimensional transparent models, including horizontal and vertical configurations, under different combinations of grain sizes and pore velocities, experimented. Concentration data were obta...
متن کاملSimulating Solute Transport in Porous Media Using Model Reduction Techniques
In this study, we introduce a numerical method to reduce the solute transport equation into a reduced form that can replicate the behavior of the model described by the original equation. The basic idea is to collect an ensemble of data of state variables (say, solute concentration), called snapshots, by running the original model, and then use the proper orthogonal decomposition (POD) techniqu...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Applied Mathematical Modelling
سال: 2005
ISSN: 0307-904X
DOI: 10.1016/j.apm.2004.11.006