The Effect of Fracture Surface Roughness and Mechanical Aperture on the Onset of Nonlinear Flow Behaviors in 3D Self-Affine Rough Fractures

<div>The relationship between the deviation of the equivalent permeability coefficient and hydraulic gradient under different fracture surface roughness and different mechanical apertures: (a) 0.2 mm; (b) 0.4 mm; (c) 0.6 mm; (d) 0.8 mm.</div>

Geofluids

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Figure 8

Figure 8: The Effect of Fracture Surface Roughness and Mechanical Aperture on the Onset of Nonlinear Flow Behaviors in 3D Self-Affine Rough Fractures 

Figure 8 | The Effect of Fracture Surface Roughness and Mechanical Aperture on the Onset of Nonlinear Flow Behaviors in 3D Self-Affine Rough Fractures 