(a) Water, at 20°C, is being siphoned from a large container through a constant diameter hose, as shown in Figure 3a. The end of the siphon is 2 m below the bottom of the tank. There is no losses along the tube and atmospheric pressure is 101.3 kPa. Determine the maximum hill height, H, over which the water can be siphoned without cavitation occurring. H 5.0 m 2.0 m Figure 3a

Elements Of Electromagnetics
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Author:Sadiku, Matthew N. O.
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(a)
Water, at 20°C, is being siphoned from a large container through a constant diameter
hose, as shown in Figure 3a. The end of the siphon is 2 m below the bottom of the tank.
There is no losses along the tube and atmospheric pressure is 101.3 kPa. Determine the
maximum hill height, H, over which the water can be siphoned without cavitation
occurring.
H
5.0 m
2.0 m
Figure 3a
(b)
A 2 cm jet of water issues from a 70 cm diameter tank, as shown in Figure 3b. The flow
can be assumed to be irrotational.
(i) Show that the velocity of the jet is equal to (2gH).
(ii) How long will it take for the water surface in the tank to drop from 3 m to 0.5 m?
70cm
H
2cm
Figure 3b
Transcribed Image Text:(a) Water, at 20°C, is being siphoned from a large container through a constant diameter hose, as shown in Figure 3a. The end of the siphon is 2 m below the bottom of the tank. There is no losses along the tube and atmospheric pressure is 101.3 kPa. Determine the maximum hill height, H, over which the water can be siphoned without cavitation occurring. H 5.0 m 2.0 m Figure 3a (b) A 2 cm jet of water issues from a 70 cm diameter tank, as shown in Figure 3b. The flow can be assumed to be irrotational. (i) Show that the velocity of the jet is equal to (2gH). (ii) How long will it take for the water surface in the tank to drop from 3 m to 0.5 m? 70cm H 2cm Figure 3b
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