rotating airfoil
 

Hi, i have coordinates for my airfoil at 0 angle of attack. How can i find its coordinates at 6 degree angle of attack. Please note i dont wanna change inlet velocity i wanna actually draw my rotated airfoil and then mesh it. Any input will be appreciated.

Thanks Usman

Re: rotating airfoil
 

http://en.wikipedia.org/wiki/Rotation_(mathematics)

Or search on Google for "rotation matrix". An Analytical Geometry book will help ...

Re: rotating airfoil
 

Thank you newbie.

Usman

Re: rotating airfoil
 

Hi,

Just do the jacobian of the co-ordinate axis. in 2d it will be

cos sin -sin cos

of the angle between the two axes

but

It doesnot make any difference if the coordinates are changed keeping velocity constant or change the velocity bye appropriate angle

bye

Re: rotating airfoil
 

Thanks Ramesh!