[madderlove]

Hello, Everyone,
i am writing my thesis in the field of 3-Blades VAWT. I have finished the whole topology. I tried to split all three blade edges into 240 nodes so that the length(spacing) of one element could be around 0.001m. I tried several times. But blade1 seems to be always twice dense as much as blade2 and blade3. That means when i set nodes number 240 for both blade 2 and blade 3, nodes number for blade 1 will automatically changed to 490, and the spacing will be changed to 0.0005m, which i donot want. If i change nodes number for blade1 to 240, nodes number fo blade2 and blade3 will automatically be changed to 117 and 118, and the corresponding spacing is 0.002m, which i donot want nor. Do i make a mistake in the mesh law? if not, what is then up? thanks guys.