Water flows from a 20 mm diameter pipe with a flowrate Q Q as shown in Fig P3 61 Plot the diameter of the water stream, d d , as a function of distance below the faucet, h h , for values of 0 h 1 m 0 h 1 m and 0 Q 0 004 m 3 s 0 Q 0 004 m 3 s Discuss the validity of the one dimensional assumption us...

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Water flows from a 20-mm-diameter pipe with a flowrate Q Q as shown in Fig. P3.61. Plot

Question:

Water flows from a 20-mm-diameter pipe with a flowrate $Q$ as shown in Fig. P3.61. Plot the diameter of the water stream, $d$ , as a function of distance below the faucet, $h$ , for values of $0 \leq h \leq 1 m$ and $0 \leq Q \leq 0.004 m^{3} / s$ . Discuss the validity of the one-dimensional assumption used to calculate $d = d (h)$ , noting, in particular, the conditions of small $h$ and small $Q$ .