11. Buoyancy, Metacentre, Stability and Rigid Body Motion
The chapter delves into the principles of buoyancy, the concept of metacenters, and the stability of floating bodies. It also discusses how rigid body motions relate to fluids and provides insights into real-world applications of fluid mechanics. Practical examples illustrate the significance of these principles in designing aircraft and marine vessels.
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What we have learnt
- Buoyancy forces act on submerged objects and are responsible for the lifting of these objects in fluids.
- The center of buoyancy is critical for understanding the stability of floating objects, and it varies based on the shape and orientation of submerged volumes.
- Metacentric height plays a crucial role in determining the stability of floating bodies and affects whether they return to their original position after being disturbed.
Key Concepts
- -- Buoyancy
- An upward force exerted by a fluid that opposes the weight of an immersed object.
- -- Metacenter
- A point where the buoyant force acts on a floating body which helps determine its stability when tilted.
- -- Stability
- The ability of a floating object to return to its original position after being disturbed, categorized into stable, unstable, and neutral equilibrium.
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