Circular Arc + Straight line
Hub and shroud are represented by the segment of a circle and a tangential straight line. The radius of the segment is defined by Point 1. The points 0 and 2 are defining the axial position of the meridional contour.
For an automatic primary design of the contours the following values are used:
▪Dimensions: dH, dS, d2, b1, b2
▪Radius of the circle segment R: 14% of dS
The manipulation of the contours can be achieved by shifting the positions of the points. As an alternative the position of points can be realized by input of numerical values. By moving points 0 or 2 the whole geometry can be moved in axial direction.