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Category > Applied Sciences Posted 23 May 2017 My Price 5.00

In a pipe of length 500 m and uniform circular cross-section

In a pipe of length 500 m and uniform circular cross-section, water flows at a steady velocity of 2 m ·s−1 and discharges to atmosphere through a valve. Under steady conditions the static head just before the valve is 300 m. Calculate the ratio of internal diameter to wall thickness of the pipe so that, when the valve is completely and instantaneously closed, the increase in circumferential stress is limited to 20 MPa, and determine the maximum time for which the closure could be described as rapid. The bulk modulus of water = 2 GPa, and the elastic modulus of the pipe material = 200 GPa.

 

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Alpha Geek
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Status NEW Posted 23 May 2017 10:05 AM My Price 5.00

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file 1495535033-Answer.docx preview (150 words )
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