## 7.8. Input Parameters for Properties View of Blade Design Cell of a Vista CPD System

Parameter | Notes
--- | ---
General
BladeModeler units | [mm | in]
Impeller export type | [Coupled to Volute |Isolated impeller]
General Duty
Rotational speed |
Density |
Volume Flow Rate |
Impeller duty
Head |
Inlet flow angle |
Meridional velocity ratio |
Impeller efficiency | Automatic | Hydraulic efficiency calculated | Volumetric efficiency calculated | Mechanical efficiency calculated | Overall Pump efficiency calculated
Hydraulic efficiency | Only for Impeller efficiency set to `Volumetric efficiency calculated`, `Mechanical efficiency calculated`, or `Overall Pump efficiency calculated`
Volumetric efficiency | Only for Impeller efficiency set to `Hydraulic efficiency calculated`, `Mechanical efficiency calculated`, or `Overall Pump efficiency calculated`
Mechanical efficiency | Only for Impeller efficiency set to `Hydraulic efficiency calculated`, `Volumetric efficiency calculated`, or `Overall Pump efficiency calculated`
Pump efficiency | Only for Impeller efficiency set to `Hydraulic efficiency calculated` `Volumetric efficiency calculated`, or `Mechanical efficiency calculated`
Impeller geometry
Number of vanes |
Shroud LE blade angle | [Specified incidence | Specified blade angle]
Incidence at shroud | Only for Shroud LE blade angle set to `Specified incidence`
Shroud leading edge blade angle | Only for Shroud LE blade angle set to `Specified blade angle`
Exit blade angle |
Hub inlet draft angle |
Shaft minimum diameter factor |
Shaft diameter ratio Dhub/Dshaft |
Vane thickness ratio thk/D2 |
Tip diameter specification | [Automatic | From head coefficient | User defined]
Head coefficient | Only for Tip diameter specification set to `From head coefficient`
Tip diameter | Only for Tip diameter specification set to `User defined`
Hub/Mean LE blade angles | [Cotangent, relative to shroud | Cosine, relative to shroud | User defined]
Hub leading edge blade angle | Only for Hub/Mean LE blade angles set to `User defined`
Mean leading edge blade angle | Only for Hub/Mean LE blade angles set to `User defined`
Exit rake angle |
Volute geometry
Casing rotation angle |
Volute style | [Elliptic & circular X-sect | Rectangular X-sect]
Aspect ratio (height/width) | Only for Volute style set to `Rectangular X-sect`
Specify diffuser exit hydraulic diameter | [select | clear]
Diffuser exit diameter | Only for Specify diffuser exit hydraulic diameter selected
Specify diffuser length | [select | clear]
Diffuser length | Only for Specify diffuser length selected

Release 18.2 - © ANSYS, Inc. All rights reserved.