The actual velocity at vena-contracta for flow through an orifice from a reservoir is given by_____________________?
Correct answer: A. Cv . √(2gH)
- A. Cv . √(2gH)
- B. Cc . √(2gH)
- C. Cd . √(2gH)
- D. Cv . Va
Explanation
At the vena contracta, the actual velocity equals the ideal theoretical velocity multiplied by the coefficient of velocity, giving \(V=C_v\sqrt{2gH}\). The coefficient of contraction describes the jet area, while the discharge coefficient applies to flow rate.
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