Physics · Fluid Mechanics
The vena contracta effect reduces the actual discharge through a sharp-edged orifice primarily because:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1The velocity at the orifice is significantly lower than ideal due to viscous friction
- 2The fluid density decreases rapidly after leaving the orifice
- 3The cross-sectional area of the jet downstream is smaller than the area of the orifice✓
- 4The liquid head above the orifice decreases significantly during steady discharge
Correct answer
The cross-sectional area of the jet downstream is smaller than the area of the orifice
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