Segment

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Segment

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The segment is the flow passage around a single blade and represents the smallest rotation-symmetric part of the impeller.

The middle of blade pressure and suction side of two neighboring main blades forms the segment boundary. These periodic surfaces are extended into the inlet and outlet area.

3D Model

In the 3D model the extension is part of the impeller segment solid. The rotor-stator-interface (RSI) is the border to the neighboring component. On the other side the RSI connection is part of the neighboring component solids.

Possible warnings

Problem

Possible solutions

Generation of segment may fail due to meridional contour.

The angle between rotation axis and hub contour is too small (lower than 0.1 degree).

Set a value for hub diameter higher than zero or round the hub contour to avoid a geometry with needle form.