This is very interesting. Thank you for the detailed answer Karthik.
But in smaller windmills like the one used to draw water by running pumps, you would need more blades as it gives a high torque.
The above statement makes sense. While considering the same case of multiple blades to a larger turbine why does it fail? What if the larger turbines used thin blades that are designed in a way not to affect the other blades? Would a five-bladed turbine be more efficient?
