MATLAB Savonius rotor simulation in matlab/simulink

  • Thread starter Thread starter Yogi@1989
  • Start date Start date
  • Tags Tags
    Rotor Simulation
AI Thread Summary
The discussion revolves around simulating Savonius and Darrieus rotors in Simulink. The initial user has derived torque equations and implemented MATLAB code, but faces issues with integrating torque to obtain angular velocity and position, yielding unexpected results. Another participant notes the inefficiency of the Savonius rotor and suggests that accurate modeling may discourage its construction. The conversation shifts as the user seeks assistance with the Savonius model, having successfully simulated the Darrieus rotor. A request for sharing the Simulink model is made, and a question arises about calculating the Coefficient of Power (Cp), specifically whether wind speed is kept constant or varied during the calculations. The need for sharing code and models is emphasized to facilitate assistance.
Yogi@1989
Messages
3
Reaction score
1
hi there,
i'm trying a to simulate a savonius rotor in simulink.
below is brief summary of how much i have done:-
1. derived the equations for torque.
2. MATLAB code done.
3. in simulink the equation I'm using to get the angular velocity and angular position is
T = I*aplha
the torque values are being stored in a matrix and being called in using a lookup table.

4. the torque plot seems to be fine but once integrate it to get angular velocity and angular position, the results are not what should be getting.


can someone please help me out!
 
  • Like
Likes Hako_Algeria
Physics news on Phys.org
The Savonius Rotor is so inefficient that you may well not believe your correct results.
Correctly modelling a SR should convince you that it is not worth building one.

You have asked a specific question about a general or vague subject.
If you do not post your equations and code it will be impossible to help you.
 
  • Like
Likes Hako_Algeria
code and simulink

hi there, please find the attached MATLAB code and simulink screen shot.




View attachment Savonew.m

sim.jpg
 
can u show us the SIMULINK model please ! i need your Model...
 
Hako_Algeria said:
Hi there,
I'm trying to simulate savonius and Darrieus rotors in simulink.
below is brief summary of how much i have done:-
1. I found Darrieus model
2. Darrieus MATLAB code done.
3. the simulation was great and successful
but...
1. I couldn't find Savonius model
2. I tried with a difficult one, i couldn't simulate that
please anyone can help about this problem

thank you
I am sorry but I have no model for the Savonius Rotor.
 
Hako_Algeria said:
can u show us the SIMULINK model please ! i need your Model...
Hi Hako_Algeria,

I have already attached the Simulink model and Matlab code in the earlier message.
I also had a question for your simulation.
How are you calculating the Coefficient of Power for the model. Do you keep the wind speed constant and then calculate Cp at each tip speed ratio value OR you vary the wind speed and calculate the Cp at the maximum power at each wind speed ??
 

Similar threads

Back
Top