and Venturimeter: Orifice meter is a small insertion while venturimeter is long insertion. The typical Cd values for orifice meter is 0.68 while for venturimeter it is around 0.9. Orifice meter is cheaper as compared to venturimeter. A Pitot tube was used to measure the velocity of water at the centre of a 25cm diameter pipe. The stagnation and static pressure heads are indicated as 6m and 5m of water head. Given the coefficient of velocity Cv= 0.98. Determine the velocity at the centre of the pipe (Dec 2013, July 2014) Ans: Given Cv = 0.98, hstagnation = 6m, hstatic = 5m h= (6-5) = 1m The velocity through tube   V CV  0.98  4.34m / V s Derive the equation for the discharge through Venturimeter 2015) (July 2014, July Ans:Venturimeter: The venturimeter consists essentially of a convergence in a pipeline followed by a short parallel sided and then a divergence. ‘throat’
and Venturimeter: Orifice meter is a small insertion while venturimeter is long insertion. The typical Cd values for orifice meter is 0.68 while for venturimeter it is around 0.9. Orifice meter is cheaper as compared to venturimeter. A Pitot tube was used to measure the velocity of water at the centre of a 25cm diameter pipe. The stagnation and static pressure heads are indicated as 6m and 5m of water head. Given the coefficient of velocity Cv= 0.98. Determine the velocity at the centre of the pipe Ans: Given Cv = 0.98, hstagnation = 6m, hstatic = 5m (Dec 2013, July 2014) h= (6-5) = 1m The velocity through tube V  CV  V  0.98  4.34m / s Derive the equation for the discharge through Venturimeter 2015) (July 2014, July Ans:Venturimeter: The venturimeter consists essentially of a convergence in a pipeline followed by a short parallel sided ‘throat’ and then a divergence.
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