Fluid Mechanics (2141906)
B.E. MECH – Sem IV th
Prepared by,
Patel Shrey B
(170953119031) B2 Mechanical
Guided by,
Mr. Milan Vachhani
(Asst. Prof. of Mechanical Deptt.)
CONTENT
• Introduction: Orifice
• Classification of Orifice
• Hydraulic Terms Related with Orifice
• Experimental Determination Of Hydraulic Coefficient For Orifice
• Examples
• Flow Through large orifice
• Flow Through Submerged Orifice
• Examples
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INTRODUCTION
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Classification of Orifice
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Hydraulic Terms Related With Orifice
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Experimental Determination Of Hydraulic
Coefficient For Orifice
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(2) Determination of Coefficient of discharge (Cd):-
(i) Volumetric Method
(ii) Gravimetric Method
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Water Discharged Through Large Orifice
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Water Discharged Through Fully Submerged Orifice
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Water Discharged Through Fully Submerged Orifice
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(4) Flow takes place between two tank a & B under pressure through an orifice connecting the tank as
shown in fig. Both the tank contains oil having specific gravity 0.82 & level of oil in tank A is 50 cm higher
than that in tank B. The load of 12 kN is placed on piston in tank A while tank B is closed & contains
entrapped air at pressure 2.90 bar. If tank A is c/s of 0.65 m2 & orifice is 8 cm in diameter. Calculate
discharge through orifice. If Cd = 0.75
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Flow through orifice