102 ms·
Wind force goes up as the square of speed, not the cube. Available power goes up as the cube. Friends of mine are building vertical axis turbines. The key to s
by tlb 14y ago
Wind force goes up as the square of speed, not the cube. Available power goes up as the cube.
Friends of mine are building vertical axis turbines. The key to safety seems to be to make the blades out of lightweight foam & kevlar so that if they do shatter they aren't flinging big heavy pieces around.
- jacquesm 14y agoYou are correct. The post has been updated. As for vertical axis turbines, they are a very tempting way to spend a ton of money without ever shipping a viable product. Many very solidly engineered examples of this exist, none of which have stood the test of time. This is a real pity because I think that the Darrieus rotor is one of the most pleasing purely technical designs ever made by man.