Spring 08 HW 5

Spring 08 HW 5 - CEE 3304 Spring 2008 CEE 3304 Spring 2008...

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Unformatted text preview: CEE 3304 Spring 2008 CEE 3304, Spring 2008, HW#5 by: Amr A. El-Sayed 1 HW #5 Bouncy and Flow Kinematics Problem 3.80 Given : A metal surface with liquid inside is described in the problem statement. Find: Magnitude, direction, and location of horizontal and vertical components. Solution The horizontal force on the curved surface depends on the pressure at the center of gravity of the projected surface area. x c x A h F × = γ hc is measured from the datum pressure (atmospheric) to the C.G. of the surface: The pressure at the CG of the surface = ( ) 2 3 . 125 5 . 2 . 50 ft lb ft ft lb h c − = − × = γ Notice that it is a negative gage pressure (suction), which means that the pressure distribution becomes as shown: Pressure distribution Atmospheric Pressure (zero) Pressure decreases (becomes -ve) h c =-2.5ft CEE 3304 Spring 2008 CEE 3304, Spring 2008, HW#5 by: Amr A. El-Sayed 2 ( ) lb ft ft lb F x . 375 . 3 . 1 . 125 2 2 − = × × − = → to the right Rz Atmospheric Pressure (zero) Pressure at this level = 0.0 3.0 Pressure at this level = - γ h W ( ) ( ) lb width ft ft lb V F z 43 . 503 . 1 .....
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This note was uploaded on 05/19/2008 for the course CEE 3304 taught by Professor Aaelsayed during the Spring '08 term at Virginia Tech.

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Spring 08 HW 5 - CEE 3304 Spring 2008 CEE 3304 Spring 2008...

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