Table 1 The flow capacity classification ranks based on the ISML technique of Nabawy (2021)28.
Graphical method Slop angle (θ) | Description | Statistical method Tanθ | Efficiency rank |
|---|---|---|---|
0° | Barrier | Tan θ < 0.017 | Tight |
1°–5° | Semi-barrier | 0.017–0.087 | |
5°–15° | Baffle | 0.087–0.268 | |
15°–30° | Semi-conductor | 0.268–0.577 | Poor |
30°–60° | Conductor | 0.577–1.732 | Fair |
60°–75° | Super conductive | 1.732–3.732 | Good |
75°–85° | Fractured | 3.732–11.43 | Very good |
85°–90° | Highly fractured | Tan θ > 11.43 | Excellent |