14-17 May 2018
New Orleans
US/Central timezone

Upscaling of mass transfer in field-scale discrete fracture networks using fractional-derivative models

15 May 2018, 17:30
15m
New Orleans

New Orleans

Poster MS 1.06: Upscaling of mass transfer in fractured porous media Poster 2

Speaker

Dr Donald Reeves (Western Michigan University)

Description

Mass transfer in field-scale discrete fracture networks (DFNs) is affected by the erratic internal structure and hydrogeological properties of the fractured media, which can result in non-Darcian flow due to channeling flow and non-Fickian transport due to matrix diffusion competing with fast displacement along fractures. This study explores flow and transport dynamics in various DFNs with a wide range of physical properties using the Monte Carlo simulation approach. The resultant mass transfer dynamics are then quantified by fractional-order derivative models built upon the promising fractional calculus. We will report results implying information transfer from non-Darcian flow to non-Fickian transport, and we will also try to explore the quantitative linkage between these two related processes. The goal is to develop efficient upscaling approaches using the spatiotemporally non-local fractional-derivative equations to characterize mass transfer in field-scale fractured media, without the need to map individual rock fractures.

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Primary authors

Ms Bingqing Lu (University of Alabama) Dr Yong Zhang (University of Alabama) Dr Donald Reeves (Western Michigan University) Dr HongGuang Sun (Hohai University) Dr Chunmiao Zheng (Southern University of Science and Technology)

Presentation Materials

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