Section 4: Soil and Water Conservation Engineering
Fluid Mechanics
Subtopic: Flow in open channels
Question Statement:
A hydraulic jump forms on a horizontal rectangular concrete channel apron of width $B = 3.0\text{ m}$. The initial supercritical flow depth before the jump is $y_1 = 0.40\text{ m}$ and the upstream velocity is $V_1 = 6.0\text{ m/s}$. Taking $g = 9.81\text{ m/s}^2$, the subcritical sequent depth of flow $y_2$ downstream of the jump in meters is ________ (round off to two decimal places).
```
Supercritical Stream Subcritical Flow
y1 = 0.40 m .-~~~~~~~~~~~~~~~-._ y2 = ?
═══════════════' Roller Region `═══════════════════════
──────────────────────────────────────────────────────────── Horizontal Apron Floor
```