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Stator extent has to be considered in relation to its inlet and outlet. These 3 areas are coupled, i.e. one is inherently defined by the two others.

Extent from inlet to outlet can be defined by 2 alternative possibilities in principle:

1. Center line

•preselection of extension direction:Radial, Axial, Tangential (to outlet of previous component), Free form

•Definition of axial extension Δz and radial extension Δr
or
length L and angle of center line to horizontal direction ε

•Definition of end cross section (Inlet or Outlet) by width b and angle to horizontal direction γ

2. Hub, Shroud

separately for hub and shroud:

•preselection of extension direction:Radial, Axial, Const. area (with respect to opposite side), Tangential (to outlet of previous component), Free form

•Definition of axial extension Δz and radial extension Δr
or
length L and angle of hub/shroud to horizontal direction ε

 

 

The angles ε and γ are defined by 0° horizontal right and rising in counter clockwise direction (mathematical positive). A menu with some default angles is supporting angle input:

Depending on the type of geometric coupling the extent is defining the inlet or the outlet of the component. If the stator has the primary side at outlet, the extent will modify the outlet. Otherwise if the stator has the primary side at inlet, the inlet will be defined by the extent.

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