Is it correct that spherical buoy doesn't rotate?(Buoyancy)

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SUMMARY

The discussion confirms that a spherical buoy does not rotate when subjected to waves, assuming buoyancy is the only force considered. This is due to the uniform geometry of the sphere, which results in pressure forces acting perpendicular to the surface. Consequently, these forces do not generate torque around the center of mass of the spherical buoy, unlike a rectangular buoy which may experience rotational forces. The conclusion is that spherical buoys maintain stability in wave conditions when buoyancy is the sole factor.

PREREQUISITES
  • Understanding of buoyancy principles
  • Knowledge of pressure forces and their effects on objects
  • Familiarity with torque and its relation to center of mass
  • Basic concepts of fluid dynamics
NEXT STEPS
  • Research the effects of wave dynamics on different buoy shapes
  • Study the principles of torque in relation to buoyancy
  • Explore fluid dynamics simulations for buoy behavior
  • Investigate the design considerations for buoys in marine engineering
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Marine engineers, physicists studying fluid dynamics, and anyone involved in the design and analysis of buoy systems will benefit from this discussion.

kevin_tee
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Does spherical buoy doesn't rotate when subject to wave compare to rectangular buoy? If only buoyancy is taken into account only. Here is the picture I draw trying to explain.

My reason is that the water that is touching the spherical buoy experience the same geometry on any surface of the sphere.
 

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kevin_tee said:
If only buoyancy is taken into account only.
Buoyancy is due to pressure forces which act perpendicular to the sphere's surface, and thus don't create any torque around it's center of mass.
 

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