preCICE offers different RBF mapping functions.
I’ve found the RBF shape calculator for gaussian fucntions.
As in this thesis stated, the thin-plate splines function is the most accurate one, which is why I chose the thin-plate-splines function.
Now in this paper is described how to calculate the support radius for gaussian functions.
For the thin-plate-splines, I’m not really sure how to calculate it.
I’ve found the following equation in this thesis for the thin-plate-splines:
\phi(x)=1−30r ̃^2−10 r ̃^3+45 r ̃^4−6r ̃^5−60 r ̃^3logr ̃
while r ̃ is the normalized distance from the center.
The airfoil, which is the coupling body, has the following dimensions:
chord length: 0.144 m
maximum thickness: 0.017 m
span length: 0.15 m