This is probably a very simple question, but I have been really struggling and need your help.
I have simulated a propeller with these parameters on Ansys: Thrust: 2000 N Angular Velocity: 314 rad/s Torque: 200 N.m Airspeed: 100 m/s Propeller Diameter: 1.2 m
I got the following results (rounded for simplicity): Thrust: 2000 N. Torque: 200 N.m
Now I need the to find the efficiency, and I have used the formula Thrust*Airspeed / ShaftPower For the shaft power, I have used Torque * angular velocity.
Using my numbers, I get an efficiency of 3.18, so there is a mistake somewhere but I cannot understand where. Are my parameters relevant? Could there be an error in the simulation ? Is it possible for 200 Nm torque, 1.2 meter diameter propeller to produce a 2000N thrust? Is my method of calculating shaft power wrong ?