Computer · Fluid Mechanics
The discharge through an orifice can be calculated using the formula Q = CdA√2gh, where Q is the discharge, Cd is the discharge coefficient, A is the cross-sectional area of the orifice, g is the acceleration due to gravity, and h is the head of the liquid above the orifice. If the actual measured discharge is lower than the theoretical discharge, which of the following is true?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1The discharge coefficient Cd is less than 1 due to flow contractions and friction losses.✓
- 2The velocity of the fluid is greater than what is predicted by the theoretical formula.
- 3The head h has been overestimated in the calculation of the theoretical discharge.
- 4The discharge coefficient Cd is equal to 1.
Correct answer
The discharge coefficient Cd is less than 1 due to flow contractions and friction losses.
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