Create Whirlpool in 55 Gallon Barrel?

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SUMMARY

Creating a whirlpool effect in a 55-gallon barrel is feasible by utilizing the draining water as the sole power source. A hole at the bottom of the barrel allows water to flow out, generating a whirlpool due to unstable flow dynamics. The Coriolis force influences the direction of the whirlpool, typically resulting in a counterclockwise motion, although turbulent instabilities can cause variations. This experiment highlights the principles of fluid dynamics and the effects of gravitational and rotational forces.

PREREQUISITES
  • Understanding of fluid dynamics principles
  • Knowledge of the Coriolis effect
  • Familiarity with gravitational forces in fluid systems
  • Basic experimental setup for water flow
NEXT STEPS
  • Research fluid dynamics experiments involving whirlpools
  • Explore the Coriolis effect in various fluid systems
  • Learn about turbulent flow and its characteristics
  • Investigate experimental setups for controlled water drainage
USEFUL FOR

Students of physics, hobbyists interested in fluid dynamics, and anyone conducting experiments related to water flow and whirlpool formation.

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would it be possible to create a whirlpool effect in a 55 gallon barrel, without any other means of power other than water draining, would it need a trap akin to a toilet to produce it, if its at all possible?
 
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I have never done that experiment, but I think if you do put a hole in the bottom, the draining water will lead to a whirlpool because the flow tends to be unstable with repect to the rotational motion. The Coriolis force due the the Earth's rotation will tend to make the whirlpool counter clockwise, but not always because tubulent instabilities could lead to the other direction
 

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