Drag coefficient and power required

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SUMMARY

The discussion focuses on calculating the drag coefficient of a two-blade rotor blade and determining the torque and power required to rotate the rotor on a fixed test stand. Participants recommend consulting resources on helicopter aerodynamics for relevant formulas, charts, and diagrams. The conversation emphasizes the importance of understanding aerodynamic principles to accurately perform these calculations.

PREREQUISITES
  • Helicopter aerodynamics
  • Drag coefficient calculations
  • Torque and power equations
  • Fixed test stand mechanics
NEXT STEPS
  • Research helicopter aerodynamics textbooks for drag coefficient formulas
  • Study torque calculations related to rotor dynamics
  • Explore power requirements for rotating systems
  • Examine fixed test stand design and its impact on measurements
USEFUL FOR

Aerospace engineers, mechanical engineers, and anyone involved in rotorcraft design and testing will benefit from this discussion.

sadegh_865
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hi

i need to calculate the drag coefficient of a rotor bade(with two blade).infact i need to calculate the torque by drag,then power required for rotate that rotor on a fixed test stand.
who knows about what formula or chart, diagrams...

thanks in regards
sadegh
 
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I would suggest looking through a book on helicopter aerodynamics. You might find something of use inside of it...

Then you can repost any questions you have about the equations in said book.
 
Last edited:

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