Fluid Mechanics Lab - Centre of Pressure Experiments - Engineering Assignment Help

Assignment Task:

AIM
1- Determine the centre of pressure for wholly and partially submerged plane surface.
2- Experimental and theoretical comparison of the centre of pressure.

DESCRIPTION OF THE APPARATUS
Water is contained in a quadrant of a semi-circular Perspex tank assembly which is allowed to swing on a smooth bar. The cylindrical sides of the quadrant have their axes coincident with the centre of rotation of the tank assembly, and therefore the total fluid pressure acting on these surfaces exerts no moment about that centre. The only moment present is that due to the fluid pressure acting on the plane surface. This moment is measured experimentally by applying weights to a weight hanger mounted on the opposite side to the quadrant tank. A second tank, situated on the same side of the assembly as the weight hanger, provides a trimming facility and enables different angles or balance to be achieved. The angular position of the plane and the height of water above it are measured on an angular scale engraved on the tank and a linear scale on the back panel. Included with the apparatus are based levelling feet and a spirit level.

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