Define the pipe friction coefficient f. Explain with reference to a log f- log Re graph, what is meant by laminar, smooth turbulent and fully rough turbulent flow in pipes.
Two pipes each 300 m long and of diameters 150 mm and 75 mm respectively, are joined in series. The difference of overall head between the ends is 30.5 m water and the rate of flow of water through the pipes is 5.4 dm3/s. Neglecting all losses other than pipe friction, determine the sheer stress at the wall of each portion of the pipe line. Assume f has the same value for each pipe.
The question belongs to Chemistry and it discusses about calculating stress at wall of each portion of the pipe line. This has been discussed in the solution detail.
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