class5_forces_on_curved_plates

class5_forces_on_curved_plates - equation 6 Separating...

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9/12/2007 1 ES330, Section 2 Dr. Douglas Bohl 239 Camp x6683, [email protected] www.clarkson.edu/~dbohl/es330 http://www.melfisher.com/default.asp
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9/12/2007 2 Outline • Forces on Submerged Surfaces • Buoyancy • Learning Objective: Be able to determine the force and its location on a curved submerged surface.
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9/12/2007 3 Problem 2-44
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9/12/2007 4 Forces on Plane Submerged Objects Remember that the force is calculated using the pressure at the centroid of the surface. This is the location of the average hydrostatic pressure on the object. This force acts lower on the object to balance out the moment created by the distributed force .
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9/12/2007 5 Forces on Submerged Curved Surfaces • To calculate the hydrostatic force on a curved surface the pressure distribution on the surface should be integrated along the surface. • Instead, we can find the force and location by breaking the resultant force into components and solving the moment
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Unformatted text preview: equation. 9/12/2007 6 Separating Forces 9/12/2007 7 9/12/2007 8 Example A 20ft long gate is hinged at H as shown. Find the horizontal Pressure P required to hold the gate in Place. 9/12/2007 9 9/12/2007 10 Buoyancy • Buoyancy force is the force acting on a submerged body due to non-equal pressure forces. 9/12/2007 11 9/12/2007 12 Example 9/12/2007 13 Buoyancy • Buoyancy forces in gases are very small due to low density of displaced gas. • If ρ object > ρ fluid the object will??? • For floating objects the Weight of the entire object is balanced by the weight of the displaced fluid – Use only the volume of the object below the free surface of the fluid 9/12/2007 14 Using Archimedes Principle to Find Treasure 9/12/2007 15 Just some stuff I found on the bottom of the ocean ;) 9/12/2007 16 Just some stuff I found on the bottom of the ocean ;)...
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This note was uploaded on 04/07/2008 for the course ES 330 taught by Professor Bohl during the Spring '08 term at Clarkson University .

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class5_forces_on_curved_plates - equation 6 Separating...

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