Question : Air at 20oC flows in a 0.60 m diameter pipe at a rate of 15 m3/s as shown in Figure 3. The pipe diameter changes to 1.2 m through a sudden expansion. i. Assess the pressure rise across this expansion. ii. Explain how there can be a pressure rise across the expansion when

Elements Of Electromagnetics
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Author:Sadiku, Matthew N. O.
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Subject : Thermofluid

Question : Air at 20oC flows in a 0.60 m diameter pipe at a rate of 15 m3/s as shown in Figure 3. The pipe diameter changes to 1.2 m through a sudden expansion.


i. Assess the pressure rise across this expansion.


ii. Explain how there can be a pressure rise across the expansion when 
there is an energy loss (KL ≠ 0).

D2 = 1.2 m
DI = 0.6 m
V= 15 m³/s
· (1)
(2)
Figure 3: Pipe with sudden expansion
Transcribed Image Text:D2 = 1.2 m DI = 0.6 m V= 15 m³/s · (1) (2) Figure 3: Pipe with sudden expansion
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