DETERMINATION OF METACENTRIC HEIGHT PDF

The Metacentric height of the ship plays an important role in setting the loading capacity and stability of the ship. The Initial metacentric height of the ship is determined by an inclining experiment after the ship is completely built. When a vertical line is drawn from B and B1, they intersect at a point known as metacentre of the ship. The metacentric height is the distance between the centre of gravity and metacentre of the ship i.

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A body while floating in a liquid is provided with a small angular displacement, it starts oscillating about a fixed point, known as metacenter. This metacenter point is considered as fixed for the little angular heel, whereas it varies for sizeable angular heel.

Metacentric height is a parameter to measure the static stability of a floating body, as it is defined as a distance between the center of gravity of a body and its metacenter. It has a direct relationship with the stability of the body.

So, larger the metacentric height, more is the stability. The formula gives the metacentric height of a floating body:. There are three equilibriums of a floating body:. In a stable equilibrium, a body returns to its original position via applied angular displacement. The condition for stability of a floating body is that the metacenter point should be above of its center of gravity. Also, its metacenter point is below the center of gravity of the floating body. While, in the neutral equilibrium condition, the metacenter coincides with the center of gravity.

The main purpose of this experiment is to determine the metacentric height of a floating body. Water Tank. First of all, check the level of water without the floating body, and then again with the floating body. After this, adjust the pointer to zero on the protractor scale.

Now, Put weights in gram on any side of the hanger and measure the distance from the center. Repeat the same procedure about ten times by varying the distance to get the right metacentric height of floating body. The procedure of determination of metacentric height, as well as its application to the stability of floating bodies, has been discussed. For a stable equilibrium, the metacentric height must be above of its center of gravity. The detailed study on flow through pipes has been done, and various losses due to friction have been studied The name "Reynolds Number" was given to honor "Osborne Reynolds" in the 19th century.

Osborne Reynolds has conducted an The study of the performance of the centrifugal pump has been discussed. No pumps are 'ideal', and their performances Pelton turbine is a tangential flow hydraulic impulse turbine in which water jet hits the bucket on a wheel, An orifice is a small aperture which is the small opening in a wall tank through which the fluid This set up consists of a nozzle and a transparent cylinder through which the jet is striking the target We Labmonk, some scientific researchers unite to design a platform for getting sources of different lab protocols and discuss various research related issues.

All rights reserved. Toggle navigation. Fluid Mechanics and Hydraulic Machines. There are three equilibriums of a floating body: Stable Equilibrium. Unstable Equilibrium. Neutral Equilibrium. Profile Status. Share this. Related Articles. Experiments on Flow through Pipes Fluid Mechanics and Hydraulic Machines The detailed study on flow through pipes has been done, and various losses due to friction have been studied Experiments on Performance of Centrifugal Pump Fluid Mechanics and Hydraulic Machines The study of the performance of the centrifugal pump has been discussed.

Experiments on Performance of Pelton Turbine Fluid Mechanics and Hydraulic Machines Pelton turbine is a tangential flow hydraulic impulse turbine in which water jet hits the bucket on a wheel, Experiments on Impact of Jets Fluid Mechanics and Hydraulic Machines This set up consists of a nozzle and a transparent cylinder through which the jet is striking the target Background Requirements Procedure Conclusion References.

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Inclining Experiment- Determining Metacentric height of the ship

Suppose that the body now turns through a small angle about the -axis. As is easily demonstrated, the body's new draft becomes. Hence, the new submerged volume is. It follows, from the previous analysis, that if the floating body under consideration turns through a small angle about the -axis then its center of buoyancy shifts horizontally a distance in the plane perpendicular to the axis of rotation.

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Determination of Metacentric Height Experimentally- Fluid Practicals

A body while floating in a liquid is provided with a small angular displacement, it starts oscillating about a fixed point, known as metacenter. This metacenter point is considered as fixed for the little angular heel, whereas it varies for sizeable angular heel. Metacentric height is a parameter to measure the static stability of a floating body, as it is defined as a distance between the center of gravity of a body and its metacenter. It has a direct relationship with the stability of the body. So, larger the metacentric height, more is the stability. The formula gives the metacentric height of a floating body:.

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Determination of Metacentric Height and Application to Stability of Floating Bodies

When a ship heels, the centre of buoyancy of the ship moves laterally. It might also move up or down with respect to the water line. The point at which a vertical line through the heeled centre of buoyancy crosses the line through the original, vertical centre of buoyancy is the metacentre. The metacentre remains directly above the centre of buoyancy by definition.

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