turbo_moc.deprecated.geometry.meridional module

turbo_moc.geometry.meridional – meridional (axial-radial, x-r) view of a stator + rotor stage, sharing its hub/tip radii inputs with the flared 3D blade extrusion (see turbo_moc.geometry.blade.export_flared_blade_step).

Convention (matching Anderson et al. 2025’s own Table 2 / Fig. 4/5 – rhub, rtip at cascade inlet/outlet): each row’s hub and tip lines are assumed to span the SAME axial stations (x_in, x_out) – only their radii differ, the standard “conical annulus” flare model (Anderson’s own Eq. 4 linear- combination-of-radii formula assumes this too, via a shared axial fraction). This means a flared 3D blade extrusion does NOT need to axially shift the tip profile relative to the hub profile – flare shows up purely as radius change (this meridional view) and, in the 3D blade, as the tip profile’s pitchwise (tangential) extent scaling with radius (pitch = 2*pi*r/Z_blades at constant blade count) – the two are two views of the SAME flare inputs, not independently specified.

turbo_moc.deprecated.geometry.meridional.build_meridional_view(stator_axial_chord, stator_r_hub_in, stator_r_hub_out, stator_r_tip_in, stator_r_tip_out, rotor_axial_chord, rotor_r_hub_in, rotor_r_hub_out, rotor_r_tip_in, rotor_r_tip_out, gap)

Hub/tip line coordinates for a stator row (x in [0, stator_axial_chord]) followed by a rotor row (x in [stator_axial_chord + gap, … + rotor_axial_chord]) – for turbo_moc.plotly/mpl’s plot_meridional_view.

Parameters:

stator_axial_chord, rotor_axial_chordfloat

Each row’s own axial (flow-direction) extent – e.g. the stator blade’s own chordwise span (mm), the rotor’s own “chord” (CSTAR, already dimensionalized if it was designed with r_star).

stator_r_hub_in/out, stator_r_tip_in/out, rotor_r_hub_in/out,

rotor_r_tip_in/outfloat

Hub/tip radii at each row’s own inlet/outlet.

gapfloat

Axial (row-to-row) spacing between the stator’s own trailing edge and the rotor’s own leading edge.