Research on Seepage Characteristics of Y-Shaped Fractures under Different Fracture Roughness

Figure 12

Evolution of Re and Eu (). Re-S and Re-R represent the Reynolds number of the smooth and rough branch fracture. Eu-S and Eu-R represent the Euler number of the smooth and rough branch fracture.

(a) Pattern 1: 1.0-1.0-1.0

(b) Pattern 2: 1.0-1.1-1.1

(c) Pattern 3: 1.0-1.2-1.2

(d) Pattern 4: 1.0-1.3-1.3