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Upscaling Dispersivity for Conservative Solute Transport in Naturally Fractured Media by Sida Jia; Zhenxue Dai; Zhichao Zhou; Hui Ling; Zhijie Yang; Linlin Qi; Zihao Wang; Xiaoying Zhang; Hung Vo Thanh; Mohamad Reza Soltanian is a Environmental Science article available to read on EtoBox.

What is Upscaling Dispersivity for Conservative Solute Transport in Naturally Fractured Media about?

Physical heterogeneities are prevalent features of fracture systems and significantly impact transport processes in aquifers across different spatiotemporal scales. Upscaling solute transport parameter is an effective way of quantifying parameter variability in heterogeneous aquifers including fractured media. This paper develops conceptual models for upscaling conservative transport parameters in fracture media. The focus is on upscaling dispersivity. Lagrangian-based transport model (LBTM) for dispersivity upscaling are derived for the solute transport in two-dimensional fractures surrounded by an impermeable matrix. The LBTM is validated against the random walk particle tracking (RWPT) model, which enables highly efficient and accurate predictions of conservative solute transport. The results show that the derived scale-dependent analytical expressions are in excellent agreement with RWPT model results. In addition, LBTM results are also compared to experimental results from the observed breakthrough curve of a conservative solute transport through a single natural fracture within a granite core. Comparing results from the LBTM and transport experiment shows that LBTM based esti

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Author

Sida Jia; Zhenxue Dai; Zhichao Zhou; Hui Ling; Zhijie Yang; Linlin Qi; Zihao Wang; Xiaoying Zhang; Hung Vo Thanh; Mohamad Reza Soltanian

Publisher

Elsevier BV

Published

2023

Language

EN

Field

Environmental Science (Physical Sciences)