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A review of spatial Markov models for predicting pre-asymptotic and anomalous transport in porous and fractured media
journal contribution
posted on 2021-05-11, 00:00 authored by Diogo BolsterDiogo Bolster, Giovanni Porta, Nicholas B. Engdahl, Thomas ShermanHeterogeneity across a broad range of scales in geologic porous media often manifests in observations of non-Fickian or anomalous transport. While traditional anomalous transport models can successfully make predictions in certain geological systems, increasing evidence suggests that assumptions relating to independent and identically distributed increments constrain where and when they can be reliably applied. A relatively novel model, the Spatial Markov model (SMM), relaxes the assumption of independence. The SMM belongs to the family of correlated continuous time random walks and has shown promise across a wide range of transport problems relevant to natural porous media. It has been successfully used to model conservative as well as more recently reactive transport in highly complex flows ranging from pore scales to much larger scales of interest in geology and subsurface hydrology. In this review paper we summarize its original development and provide a comprehensive review of its advances and applications as well as lay out a vision for its future development.
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2021-05-11Language
- English
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1873-6009|0169-7722Publisher
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