Engineering Board Exam Reviewer · Fluid Mechanics · medium
A 50 mm diameter sharp-edged orifice with Cd = 0.61 discharges water under a constant head of 4 m. What is the actual discharge?
- 10.61 L/s
- 17.39 L/s
- 94.00 L/s
- 42.44 L/s
Answer
A. 10.61 L/s
Solution
Q = Cd Asqrt(2gh) = 0.61(π /4)(0.052)sqrt(2 × 9.81 × 4) = 0.010611 m3/s = 10.61 L/s.
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