Mathematical Problems in Engineering / 2013 / Article / Fig 4

Research Article

Challenges in the Application of Fractional Derivative Models in Capturing Solute Transport in Porous Media: Darcy-Scale Fractional Dispersion and the Influence of Medium Properties

Figure 4

The laboratory observed bromide BTCs (symbols) versus the best-fit or predicted solutions using the TFDM model (2a) and (2b) (solid lines) for glass beads with sizes 1 + 0.2 mm (a) and 0.4 + 0.2 mm (b) and silica sand with sizes 1 + 0.2 mm (c) and 0.4 + 0.2 mm (d). The dashed line in (a) is the best-fit Gaussian solution, shown for comparison. The dots in (b), (c), and (d) are the updated, best-fit results using the TFDM model (2a) and (2b) for each individual BTC.

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