Channel

 Width  

Effective

 Width  

Gradient

(Fall)

  3,000mm long Channel    

  6,000mm long Channel    

Flow (l/s)

Velocity (m/s)

Flow (l/s)

Velocity (m/s)

200mm

120mm

2.00

7.00

1.00

3.00

0.73

1.09

0.49

0.64

2.00

12.00

1.00

4.00

0.73

1.27

0.49

0.74

3.00

10.00

2.00

4.00

0.76

1.20

0.52

0.69

3.00

20.00

2.00

7.00

0.76

1.44

0.52

0.82

3.00

14.00

2.00

6.00

0.79

1.27

0.53

0.73

3.00

27.00

2.00

10.00

0.79

1.55

0.53

0.87

6.00

26.00

4.00

10.00

0.82

1.39

0.56

0.78

6.00

52.00

4.00

18.00

0.82

1.75

0.56

0.95

9.00

38.00

6.00

15.00

0.84

1.45

0.57

0.81

9.00

77.00

6.00

26.00

0.84

1.86

0.57

0.99

1/100

1/200

1/100

1/200

1/100

1/200

1/100

1/200

1/100

1/200

300mm

170mm

300mm

220mm

450mm

370mm

600mm

520mm

FLOW RATES

EFFECTIVE WIDTH

20MM PLUS FALL

GRATING WIDTH

GRATING DEPTH

CROSS SECTION FLOW INFORMATION DIAGRAMS

FALL

HEAD DEPTH