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This format can be used to import rotational symmetric components via files containing 2D points (*.cftcv, *.txt) representing specific design contours.

Meridian

Meridional contours (hub, shroud/casing) can be imported via separate files containing a 2D point per line representing a contour point in the z,r coordinate system.

Identic point coordinates in two consecutive lines define a contour connector separating curves from each other.

An example is given in the following image showing the hub/shroud input point data and the resulting meridional design:

Until now, only hub/shroud contours are supported by this import format. Meridional blade edges are located near the components outlet for simplicity and can be designed as usual in the general design process.