5.50 A variable mesh screen produces a linear and axisymmet- ric velocity profile as indicated in Fig. P5.50 in the air flow through a 2-ft-diameter circular cross-sectional duct. The static pressures upstream and downstream of the screen are 0.2 and 0.15 psi and are uniformly distributed over the flow cross-sectional area. Neglecting the force exerted by the duct wall on the flow- ing air, calculate the screen drag force. D = 2 ft Section (1) P₁ = 0.2 psi V₁-100 ft/s Variable mesh screen Section (2) P₂= 0.15 psi
5.50 A variable mesh screen produces a linear and axisymmet- ric velocity profile as indicated in Fig. P5.50 in the air flow through a 2-ft-diameter circular cross-sectional duct. The static pressures upstream and downstream of the screen are 0.2 and 0.15 psi and are uniformly distributed over the flow cross-sectional area. Neglecting the force exerted by the duct wall on the flow- ing air, calculate the screen drag force. D = 2 ft Section (1) P₁ = 0.2 psi V₁-100 ft/s Variable mesh screen Section (2) P₂= 0.15 psi
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:5.50 A variable mesh screen produces a linear and axisymmet-
ric velocity profile as indicated in Fig. P5.50 in the air flow
through a 2-ft-diameter circular cross-sectional duct. The static
pressures upstream and downstream of the screen are 0.2 and 0.15
psi and are uniformly distributed over the flow cross-sectional
area. Neglecting the force exerted by the duct wall on the flow-
ing air, calculate the screen drag force.
D = 2 ft
Section (1)
P₁ = 0.2 psi
V₁ = 100 ft/s
FIGURE P5.50
Variable mesh screen
Section (2)
P₂ = 0.15 psi
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