s with non-constrained BC elevation, 3 cm, 4 cm, 5 cm, 6cm & 7 cm from up to down respectively (grid M3 is employed).

Figure 4.2 Protrusion length investigation under R1 regime Q=1 m³/s with non-constrained BC elevation,
3 cm, 4 cm, 5 cm, 6cm & 7 cm from up to down respectively (grid M3 is employed).