Aerodynamics of a paper rocket

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SUMMARY

The discussion centers on determining the air resistance and drag coefficient of a paper rocket launched from a PVC pipe air launcher at 100 psi. The user seeks guidance on calculating maximum speed while considering factors such as gravity, air resistance, and friction. It is noted that obtaining accurate drag measurements may require computer software, and filming the rocket against a stripped background can aid in estimating its speed by analyzing movement per frame.

PREREQUISITES
  • Understanding of basic physics concepts such as force, gravity, and drag.
  • Familiarity with air pressure measurements, specifically in psi.
  • Knowledge of video analysis techniques for motion tracking.
  • Experience with basic rocket design principles, particularly regarding shape and aerodynamics.
NEXT STEPS
  • Research methods for calculating drag coefficients in aerodynamics.
  • Learn about video analysis software for motion tracking, such as Tracker or Kinovea.
  • Explore the principles of rocket propulsion and the effects of air pressure on flight dynamics.
  • Investigate the impact of different rocket shapes on drag and stability during flight.
USEFUL FOR

Aerospace enthusiasts, physics students, hobbyists building model rockets, and anyone interested in the principles of aerodynamics and propulsion.

this1dude
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I'm pretty new to this forum but have loved sciences if all kinds since I was young and plan to get into nuclear engineering after high school. Back on topic, I have made a rocket launcher out of pvc pipe that is powered by an air compressor. Ranging from 60-120 psi propelling my paper rocket. Since I'm often bored after school, how can I determine the air resistance and drag coefficient and well the maximum speed it reaches when propelled with 100psi. I know it'll be hard because I have to take into account gravity and air resistance and friction and the force that the 100psi hits it at but anyone who knows this stuff want to help me please?
 
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What is the shape of your rocket? Getting a "good" drag answer here could be either fairly easy or basically impossible without computer software.
 
The max speed will probably occur just as it exits the launching tube. You could try filming it against a stripped background. Estimate how far it moves per frame.
 

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