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In the hydraulic test, different quantities are calculated according to the type of stilling device adopted. Depending on the different cases, the expected results of the hydraulic calculation are the following:

 

Basin not coated with auxiliary dam

 

z0 [m]

Rise in the upstream water level

zg [m]

Water level on the notch (NB: the water on the notch flows under critical state conditions)

zv [m]

Reattachment level of the fluid vein on the face downstream

z1 [m]

Water level downstream the weir

fb [m]

Soil profile level at the distance of maximum excavation (maximum excavation depth)

z2 [m]

Rise in the water level immediately upstream the auxiliary dam

zum [m]

Current level downstream the weir under uniform motion conditions

lbmin [m]

Basin minimum length

hcbmin [m]

Minimum height of the auxiliary dam

 

 

Embankment basin, coated with aux. dam

 

z0 [m]

Rise in the upstream water level

zg [m]

Water level on the notch (NB: the water on the notch flows under critical state conditions)

zv [m]

Reattachment level of the fluid vein on the downstream face

z1 [m]

Water level downstream the weir

z2 [m]

Rise in the water level immediately upstream the auxiliary dam

zum [m]

Current level downstream the weir under uniform motion conditions

lbmin [m]

Basin minimum length

hcbmin [m]

Minimum height of the auxiliary dam

 

 

Depression basin, coated with auxiliary dam

 

z0 [m]

Rise in the upstream water level

zg [m]

Water level on the notch (NB: the water on the notch flows under critical state conditions)

zv [m]

Reattachment level of the fluid vein on the downstream face

z1 [m]

Water level downstream the weir

z2 [m]

Rise in the water level immediately upstream the auxiliary dam

Zum [m]

Current level downstream the weir under uniform motion conditions

lbmin [m]

Basin minimum length

hcbmin [m]

Minimum height of the auxiliary dam

 

Absence of basin and auxiliary dam

 

z0 [m]

Rise in the upstream water level

zg [m]

Water level on the notch (NB: the water on the notch flows under critical state conditions)

zv [m]

Reattachment level of the fluid vein on the downstream face

zum [m]

Current level downstream the weir under uniform motion conditions.

 

 

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