5 ms·
Given that the wind is pushing it, wouldn't the blade tip's speed somehow be naturally limited by the wind speed?
by askvictor 3y ago
Given that the wind is pushing it, wouldn't the blade tip's speed somehow be naturally limited by the wind speed?
- jakewins 3y agoAt least in sailing, you can go a lot faster than the wind; I assume the same is true for these blades.
- adgjlsfhk1 3y agoit would be except that the goal of a wind turbine is to generate power rather than go fast
- wffurr 3y agoHow do you go fast except by generating power? Force times distance over time, that’s how sailboats move too.
- doctor_eval 3y agoIt's not the blades that have to go fast, but the generator.
- raverbashing 3y agoMore specifically, power is Torque x Omega (rotational speed) for a rotational system So yes, faster means more power. Torque is limited by the generator and how much power is "being pulled" from it. (which is a bad description but there you go)
- flangola7 3y agoHow can you travel faster than the wind that is pushing you?
- LorenzoGood 3y agoApparent wind, and angle
- MayeulC 3y agoEven if that where true (note that the wind is not pushing the blade directly away, but sideways), the tip of the blade is not responsible for most of the force (since it mostly depends on the cross section area, intuitively). In other words, wind pushing the middle of the blade could accelerate the tip, even if the tip only produces drag.
- chaps 3y agoNot necessarily! https://www.youtube.com/watch?v=yCsgoLc_fzI https://www.youtube.com/watch?v=yCsgoLc_fzI