(Laminar flow) A fluid flows through two horizontal pipes of equal length which are connected together to form a pipe of length 21. flow is laminar and fully developed. The pressure drop for the first pipe is 1.236 times greater than it is for the second pipe. If the diameter of the first pipe is D, determine the diameter of the second pipe. D3 = D

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Pressurized pipe flow

A 15-kilometer-long pipe with a pipe diameter of one meter transports water at a speed of one meter per second. The pipe has a friction coefficient of 0.005. Calculate the frictional head loss?