这才是最完美的S曲线，飞机发动机的叶片，为什么非要扭成这样？【科学火箭叔】

Why are the blades of an aircraft engine twisted into an S shape? What kind of scientific principle is behind it, I am "Uncle Encyclopedia" Uncle Rocket, let us understand it together today! The s-shape at the front of the fan blade was inspired by the curve at the top of the sand dune. At that time, it was a headache for how to reduce the resistance of air friction on the fan blade. Some people had a sudden inspiration. Why is the top of the sand dune not straight but similar to a crescent shape? Could it be that the top of the dune is the shape with the least friction left when the air flows through it and takes away the sand with high resistance? After the experiment, it was found to be true. This is the perfect S-curve. Why do the blades of an aircraft engine have to be twisted like this? Hello everyone, I'm Uncle Rocket~ Talk about interesting science, and teach the makers who know what to do! Through the description of natural science and social science knowledge, outline the overall outline of the scientific knowledge picture! Want to know more, all in [Science Rocket Uncle] -------------------------------------------------- ------------------------------- If you like me, just subscribe to me, don’t forget to click on the little bells 🔔Your support is precious to me! 💨    / @kexuehuojianshu   #Uncle Science Rocket#aircraft motor#Engine blade