Manual Calculation

 

a)  Calculation

Flow

 

b)  Inlet Checking

D= 1.05m (3.445 ft)

C=0.0398, Y=0.67

 

c)  Outlet Control Headwater Depth at Inlet

Critical depth  

 

d)  Determine H

                                   (Eq 7.5)

                                           (Eq 7.6)

 

e)  Check Headwater Control

 

f) Outlet Velocity

If given

 

If, TW =0.8m

 

Velocity at Outlet Vo= (2.4/0.395)=6.076 m/s

Velocity at downstream V=(2.4/0.708)=3.3898 m/s

Vo/V=1.792

 

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