Levitating an Object with High Speed Fans: Calculate Energy Needs

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SUMMARY

This discussion focuses on the feasibility of levitating a 2500 Kg object using high-speed fans. Key considerations include the need for precise calculations of energy requirements and optimal fan configurations to maximize durability while minimizing energy consumption. The conversation highlights the importance of aerodynamics, suggesting that if air merely circulates around the object without generating lift, significantly larger fans will be necessary. Additionally, using an airtight chamber with an air pump is proposed as a more efficient alternative for maintaining lift.

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  • Understanding of fluid dynamics principles
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  • Knowledge of energy calculations for mechanical systems
  • Experience with model construction for experimental purposes
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Engineers, physicists, and hobbyists interested in experimental levitation techniques, particularly those focused on optimizing energy use and understanding fluid dynamics in practical applications.

Ronhrin
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I was wondering about the best ways to levitate a 2500 Kg ~ 5000 Pounds object at aproximately 1 ~ 2 meters from the ground by the means of high speed fans strategicly located beneath the respective object.

how can I calculate the amount of energy that I need and discover the best configuration for the maximum durability and smallest energy comsuption possible?
 
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The problem cannot be answered without a great deal more information.

If the object were used as the piston in a airtight chamber, you'd only need to use an air pump to create or maintain air pressure under the object. If your system were entirely air-tight, it would require no work at all, after the initial pressurization.

On the other hand, if the object is in free air, with fans under it, then the aerodynamics of the object become exceedingly important. If most of the air just ends up "blowing around" the object, rather than actually imparting force on the object, then you'll need enormous fans.

My advice would be to construct some accurate scale models, and do your fluid dynamics experiments with that.

- Warren
 

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