Engineering Board Exam Reviewer · Fluid Mechanics · hard
Water ( = 1000 kg/m3) flowing at 2.5 m/s in a pipe is stopped instantaneously by a valve. If the pressure wave speed is 1200 m/s, what is the water hammer pressure rise?
- 1.50 MPa
- 29.43 MPa
- 3.00 MPa
- 3.13 kPa
Answer
C. 3.00 MPa
Solution
P = cV = 1000(1200)(2.5) = 3,000,000 Pa = 3.00 MPa.
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