- #1
Deathwhisper
- 3
- 0
Hello ,
I have two questions about VAWT Design
1- If you are designing a full scale turbine theoretically and decided to test a small scale model to check the value of Cp, what things you should take in mind to make the results and performance of the model reflects the full scale turbine?
I understand for example in wing design the Reynolds number, Airfoil and Aspect ratio should be the same, but in VAWT case what parameters should be equal in model and full scale?
2- When you want to measure the power of the turbine , what are the steps?
I understand you need to measure angular velocity and torque but my question is how should I measure torque ? do I need to full stop the turbine by a weight to get the torque ? or should I apply a load on the turbine but not to stop it then measrue torque and speed?
Thank you
I have two questions about VAWT Design
1- If you are designing a full scale turbine theoretically and decided to test a small scale model to check the value of Cp, what things you should take in mind to make the results and performance of the model reflects the full scale turbine?
I understand for example in wing design the Reynolds number, Airfoil and Aspect ratio should be the same, but in VAWT case what parameters should be equal in model and full scale?
2- When you want to measure the power of the turbine , what are the steps?
I understand you need to measure angular velocity and torque but my question is how should I measure torque ? do I need to full stop the turbine by a weight to get the torque ? or should I apply a load on the turbine but not to stop it then measrue torque and speed?
Thank you