PSI vs MPH Calculation: Force for Wind Resistance

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SUMMARY

The discussion centers on calculating the force required to counteract wind resistance (PSI) for a vehicle traveling at 80 miles per hour. Participants emphasize the importance of understanding Bernoulli's equation to determine velocity pressure and the role of compressed air in opposing wind forces. The conversation also highlights the need for clarity regarding the application of compressed air, whether for propulsion or other uses, and the specifics of the distance (3-4 meters) mentioned. Overall, the calculation of wind resistance involves both theoretical and practical considerations related to fluid dynamics.

PREREQUISITES
  • Understanding of Bernoulli's equation
  • Knowledge of wind resistance and PSI calculations
  • Familiarity with vehicle aerodynamics
  • Basic principles of fluid dynamics
NEXT STEPS
  • Research the application of Bernoulli's equation in automotive engineering
  • Explore methods for calculating wind resistance in vehicles
  • Investigate the use of compressed air systems in propulsion
  • Learn about aerodynamic design principles for reducing drag
USEFUL FOR

Automotive engineers, mechanical engineers, and anyone involved in vehicle design or performance optimization will benefit from this discussion.

norm88j
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Hello PF,

I would like to know what is the calculation for determing the amount of force it would take to combat PSI of the wind in a vehicle moving at 80 mile per hour.
 
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Are you talking about how to calculate wind resistance for an automobile? Is that the question?
 
yes, more importantly compressed air going in the opposite direction. How much compression or compressed psi would be necessary tocombat the wind 3-4 meters?
 
Where do you envision applying compressed aire to oppose the wind? How much will be required seems like it might depend upon how you will use it. Will you use it in an air motor working on the wheels to power the wheels? Will you apply it to a sail? Just what are you thinking? What do you mean when you add "3-4 meters"? This really does not make much sense.
 
the opposing air would come from a motorized compressed apparatus or hose.
 
Use the simple form of bernoulli's equation for velovity pressure.
 

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