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Influence of Sorption Intensity on Solute Mobility in a Fractured Formation
Publisher: American Society of Civil Engineers
Abstract: Diffusive mass transfer between fracture and matrix accompanied with sorption significantly influences the efficiency of natural attenuation in hard rocks. While these processes have extensively been studied in a fractured ...
Mathematical Modeling of Groundwater Flow and Solute Transport in Saturated Fractured Rock Using a Dual-Porosity Approach
Publisher: American Society of Civil Engineers
Abstract: The present paper addresses critical issues that describe the transient transfer of stored rock-matrix flow into high-permeable fractures and rate-limited diffusive solute flux into low-permeable rock matrix using a typical ...
Spatial Moment Analysis for Transport of Nonreactive Solutes in Fracture-Matrix System
Publisher: American Society of Civil Engineers
Abstract: This paper presents an analysis using spatial moments for transport of nonreactive solutes in a single fracture-matrix system using a dual porosity framework. The velocity and dispersion obtained using the first and second ...
Spatial Moment Analysis for One-Dimensional Nonisothermal Quartz Transport and Dissolution/Precipitation in Fracture-Matrix System
Publisher: American Society of Civil Engineers
Abstract: This paper presents a spatial-moment analysis of nonisothermal solute transport with simplified dissolution/precipitation of quartz in a single fracture-matrix system using a dual porosity framework. For this purpose, a ...
Numerical Modeling and Analysis of Solute Velocity and Macrodispersion for Linearly and Nonlinearly Sorbing Solutes in a Single Fracture with Matrix Diffusion
Publisher: American Society of Civil Engineers
Abstract: The behavior of the solute velocity and effective macrodispersivity of solute front in the fracture for the transport in a single fracture in the presence of rock matrix diffusion is analyzed using numerical modeling. The ...
Time-Dependent Dispersivity of Linearly Sorbing Solutes in a Single Fracture with Matrix Diffusion
Publisher: American Society of Civil Engineers
Abstract: Field studies show that the variance of travel distance often increases nonlinearly with time elapsed after release of solute tracers. The nonlinear relationship between variance of travel distance and time is attributed ...