Radius of curvature normal to the streamlines.

Design parameters of the two tested configurations.

r − x − θ) 3D coordinate system [6].

Full section spline thickness distribution.

Full section spline thickness distribution.

The S-shape section camber line.

r − x − θ) 3D coordinate system [6].

Second derivative over turbine blade surface.

3rd rotor hub section from EEE NASA report.

The Second derivative at the Leading edge.

Simple Torsion of a cube. The cube above covers the interval [−1, 1] ×

Total temperature ratio for Rotor35.

Second derivative B-spline with control points.