Example: In a 45° bend a rectangular air duct of 1 m² cross-sectional area is gradually reduced to 0.5 m² area. Find the magnitude and direction of force required to hold the duct in position if the velocity of flow at 1 m² section is 10 m/s, and pressure is 30 kN/m². Take the specific weight of air as 0.0116 kN/m³. Solution: Fay 45° Fex PA, cos 45° 45° V,cos 45° Y Pi

Elements Of Electromagnetics
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ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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Example: In a 45° bend a rectangular air duct of 1 m? cross-sectional area is gradually
reduced to 0.5 m² area. Find the magnitude and direction of force required to hold the
duct in position if the velocity of flow at 1 m? section is 10 m/s, and pressure is 30 kN/m².
Take the specific weight of air as 0.0116 kN/m³.
Solution:
Fay
45° Fzx
PA, cos 45°
45°
Vzcos 45°
2.
45°
Transcribed Image Text:Example: In a 45° bend a rectangular air duct of 1 m? cross-sectional area is gradually reduced to 0.5 m² area. Find the magnitude and direction of force required to hold the duct in position if the velocity of flow at 1 m? section is 10 m/s, and pressure is 30 kN/m². Take the specific weight of air as 0.0116 kN/m³. Solution: Fay 45° Fzx PA, cos 45° 45° Vzcos 45° 2. 45°
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