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-   -   Airfoil->Spline->Smooth Matlab (http://www.cfd-online.com/Forums/main/106645-airfoil-spline-smooth-matlab.html)

Giroscopo September 4, 2012 11:10

Airfoil->Spline->Smooth Matlab
 
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Hello everyone, Iīm working with Matlab to draw airfoils. I use splines to improve the visualization, but in the leading edge I have problems, I want to have a curve more smoother, like a circle in the leading edge.

Anybody knows other method to join the points of an airfoil?

Anybody knows a smooth method to use whit airfoils?

In the photo, you can see my problem. I use cubic spline (natural conditions).

Thank you, and sorry for my English.

FMDenaro September 4, 2012 11:25

I think you did something wrong in the spline....

Giroscopo September 4, 2012 11:48

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Thank you FMDenaro for your answer. I have two splines, one for the upper surface and another for the lower surface. I canīt use an spline to join all the points.

FMDenaro September 4, 2012 11:58

Quote:

Originally Posted by Giroscopo (Post 380168)
Thank you FMDenaro for your answer. I have two splines, one for the upper surface and another for the lower surface. I canīt use an spline to join all the points.


why not? you define the law x=x(s), y=y(s) with s a natural parameter ...


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