Wing and wind turbine blade aerodynamic center?

[mezah]

Hello everyone,
Now i am trying to model wind turbine blade using solidworks.

I have the airfoil coordinates at each section of the blade, but the coordinates are distance per chord (x/c,y/c) so i have to scale it using the calculated chord.
When i scale it with respect to the origin - which is at the leading edge - the position of the aerodynamic center for each section is changed with respect to others.
Is the aerodynamic center should be along the same line??
Is this correct or should i do it another way?
Thanks in advance.
http://img713.imageshack.us/img713/6729/71671216.jpg

 

[viscousflow]

When i scale it with respect to the origin - which is at the leading edge - the position of the aerodynamic center for each section is changed with respect to others.

Well this has to be the case since the aerodynamic center you were given is the 2D aerodynamic center. The blade's true 3D aerodynamic center will change and will be along a new constant chord. You will have to recalculate the 3D AC or estimate it using CFD.

 

[NatSusan]

Hi there! It sounds like you are on the right track with modeling your wind turbine blade in Solidworks. As for your question about the aerodynamic center, it is not necessary for it to be along the same line for each section. The aerodynamic center is the point on the airfoil where the lift force acts, and it can vary depending on the shape and angle of the airfoil. As long as you are accurately scaling the airfoil coordinates and maintaining the correct proportions, the position of the aerodynamic center should not be a problem. Good luck with your project!