Changes

==Design==

==Design==

The required volume for a small forebay, serving up to 2 Ha (''V_f'', m³), may be calculated as:  

1. The required volume for a small forebay, serving up to 2 Ha (''V_f'', m³), may be calculated as:  

:<math>V_{f}=A_{c}\times R\times L_{o} \times F_{c}</math>

:<math>V_{f}=A_{c}\times R\times L_{o} \times F_{c}</math>

}}

}}

The area of the forebay (''A<subf</sub>'') designed for 80 % capture efficiency (i.e. R = 0.8) may be calculated as:

2. The area of the forebay (''A<subf</sub>'') designed for 80 % capture efficiency (i.e. R = 0.8) may be calculated as:

:<math>A_{f}=\frac{12\times Q}{V_{f}}</math>

:<math>A_{f}=\frac{12\times Q}{V_{f}}</math>

}}

}}

Check that the forebay depth (''d_f'', m) ≤ 0.3 m:

3. Check that the forebay depth (''d_f'', m) ≤ 0.3 m:

: <math>d_{f}=\frac{V_{f}}{A_{f}}</math>

: <math>d_{f}=\frac{V_{f}}{A_{f}}</math>

===Example calculation===

===Example calculation===

==Gallery==

==Gallery==