Problem 4.68 - Problem 4.68 Given Water flowing past...

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Problem 4.68 [Difficulty: 2] CS c R x d V V θ y x Given: Water flowing past cylinder Find: Horizontal force on cylinder Solution: Basic equation: Momentum flux in x direction Assumptions: 1) Steady flow 2) Incompressible flow 3) Atmospheric pressure throughout 4) Uniform flow Hence R x u 1 ρ u 1 A 1 ( ) u 2 ρ u 2 A 2 ( ) + = 0 ρ V sin θ ( ) ( ) V a b ( ) + = R x ρ V 2 a b sin
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