How to make an experiment to find the value of the Drag Coefficient of a Cone?

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SUMMARY

The discussion focuses on designing an experiment to determine the drag coefficient of a cone using a wind tunnel setup. The proposed method involves suspending the cone from a pivot and utilizing a calibrated spring force scale to measure the force acting on the cone as it experiences airflow. This approach allows for direct measurement of the drag force, which is essential for calculating the drag coefficient using the formula F = kv, where F is the drag force and v is the velocity of the airflow.

PREREQUISITES
  • Understanding of fluid dynamics principles
  • Familiarity with wind tunnel operation
  • Knowledge of force measurement techniques
  • Basic grasp of drag coefficient calculations
NEXT STEPS
  • Research wind tunnel design and operation techniques
  • Learn about the calibration and use of spring force scales
  • Study fluid dynamics equations related to drag force
  • Explore experimental methods for measuring drag coefficients of various shapes
USEFUL FOR

Engineers, physicists, and students involved in aerodynamics research or experimental physics who are interested in measuring drag coefficients in fluid flow scenarios.

ralphy23
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How can I design an experiment to find the drag coefficient of a cone without knowing the force of drag that is acting on the cone? Is this even possible?
 
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I'm not sure what coefficient you want to find. Perhaps the k in F = kv, where v is the speed of the cone? Yes, I think you must measure F. I am thinking of a wind tunnel with the cone hanging into it. It would be attached to a pivot above the wind flow and a spring above or below the pivot would hold it in place but the spring would compress when there is a force on the cone. Maybe use a calibrated spring force scale as the spring so you can just read off the force in Newtons.
 

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