KALI CHARAN NIGAM INSTITUTE OF
FUNDAMENTAL OF MECHANICAL ENGINEERING (BME101)
( I SEMESTER )
BY : DEEPAK KUMAR YADAV
It is device used for measuring the rate of flow of
a fluid through a pipe.
It is a cheaper device as compared to
It consists of a flat circular plate which has a
circular sharp edged hole called orifice.
RATE OF FLOW OR DISCHARGE
• Let p1, p2 = pressure at
section 1 &2
• v1, v2 = velocity at section 1
• a1, a2 = area at section 1 &2
• Applying Bernoulli’s at
section 1 and 2