To investigate relation between head over vertex of a v-notch and flow rate through the notch.

Object: To investigate relation between head over vertex of a vee-notch and flow rate through the notch.

Apparatus Required:

• 
  Hydraulic Bench with (orifice and) notch apparatus, measuring cylinder, and stop-watch.
  

Arrangement of apparatus for measuring flow through V-Notch

Theory:

Qac

 Cd

x 8 / 15

tan  H 5 / 12

2

2g

(6.1)

whereQ = Actual discharge

Cd = Coeff. of discharge for the notch

 = The vertex angle

H = Head measured from vertex of the notch

orCd  8

1

.. Qac

oH 5 / 2

1962 tan 45

15

Cd  0.04.

Qac H 5 / 2

(6.2)

Procedure:

Observations:

Angle of V notch,  = 90^o

Results & Comments: