Objective:

To determinate the co-efficient of discharge of a V-Notch.

Apparatus used:

A channel with V-Notch, hook gauge, collecting tank, piezometer, etc

Start the pump by pressing start button.

 Open the inlet valve and allow the water to fill in the channel till crest level.

 Note the theoretical discharge of the V-Notch.

Initial reading (water level till crest) = 2.6 cm

Final reading =

 Note actual discharge reading of the V-notch from the collecting tank.

Time required by water to fill 10cm height, t =

Length of the collecting tank = 70 cm

Breadth of the collecting tank = 50 cm

Theoretical discharge, Q_th =

Discharge of water, Q_act =

Slope, n =

k =

Coefficient of discharge, C_d =