Applications
Design of High Performance Pump Stage
Design Optimisation of a Strongly Interacting Diffuser Pump Stage
Design of a Double-Suction Volute Pump
Multi-Objective Optimisation of a Centrifugal Pump Stage by Means of Design of Experiment Coupled with Inverse Design Method
Hydraulic Design Optimisation of a Torque Converter
Design of a 3 Stage Axial LP Turbine for Aeroengine Applications
Design of an Inducer Pump with High Suction Performance and Backflow Control
Publications
- A Fast 3D Inverse Design Based Multi-Objective Optimization Strategy for Design of Pumps
- Development of Cryogenic Pump Hydrodynamics Using Inverse Design Method and CFD
- Multi-Objective Design Optimization of a Mixed-Flow Pump
- Study of Turbopump Inducers Designed by 3-D Inverse Design Method
- Optimization of Pump Blades Using Three Dimensional Inverse Design Method
Case Studies
- Design of a Compact Reactor Coolant Pump with Higher Efficiency and Cavitation Performance by using TURBOdesign1
- Application of TURBOdesign1 for the Compact Design of Rocket Engine Turbopump - JAXA
- Design of Mixed Flow Pump Stage Using TURBOdesign1 and CFD Code, Hyosung-Ebara
- CDI Marine Applies TURBOdesign1 & CFD to Design a Marine Waterjet
- Design of a Second Stage Hydrogen Rocket Turbopump by TURBOdesign1
Hydrodynamic Design of Pump Diffuser Using Inverse Design Method and CFD
A new approach to optimizing a pump diffuser is presented, based on a three-dimensional inverse design method and a Computational Fluid Dynamics (CFD) technique. The blade shape of the diffuser was designed for a specified distribution of circulation and a given meridional geometry at a low specific speed of 0.109 (non-dimensional) or 280 (m3/min, m, rpm). To optimize the three-dimensional pressure fields and the secondary flow behavior inside the flow passage, the diffuser blade was more fore-loaded at the hub side as compared with the casing side. Numerical calculations, using a stage version of Dawes three-dimensional Navier-Stokes code, showed that such a loading distribution can suppress flow separation at the corner region between the hub and the blade suction surface, which was commonly observed with conventional designs having a compact bowl size (small outer diameter). The improvements in stage efficiency were confirmed experimentally over the corresponding conventional pump stage. The application of multi-color oil-film flow visualization confirmed that the large area of the corner separation was completely eliminated in the inverse design diffuser.