Question: Water flowing through an 8-cm-diameter pipe enters a porous section, as in Fig. P3.10, which allows a uniform radial velocity vw through the wall surfaces

Water flowing through an 8-cm-diameter pipe enters a porous section, as in Fig. P3.10, which allows a uniform radial velocity vw through the wall surfaces for a distance of 1.2 m. If the entrance average velocity V1 is 12 m/s, find the exit velocity V2 if (a) vw = 15 cm/s out of the pipe walls; (b) vw = 10 cm/s into the pipe. (c) What value of vw will make V2 = 9 m/s?

Water flowing through an 8-cm-diameter

V. 1.2 m

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