- #1
reebrah
- 10
- 0
Homework Statement
basically I am doing work that requires me to calculate power for given thrust of a fan which is hovering.
Homework Equations
We are given the diameter: 0.8m, thrust output of fan: 250kg, rho=1.1455 kg/m^3, and eta which is the fan efficiency = 0.8
The Attempt at a Solution
I found this equation in wikipedia:
P^2 = (T^3) / ( (eta^2)(rho)A)
using this equation I got 7322w of power to attain a thrust of 250kg...This seems a little off. What is wrong here? does anyone know if this is even the correct value or even correct equation? thank you and appreciate it!