On the Coupling of Inverse Design and Optimization Techniques for the Multiobjective, Multipoint Design of Turbomachinery Blades
- 29 January 2009
- journal article
- Published by ASME International in Journal of Turbomachinery
- Vol. 131 (2), 021014
- https://doi.org/10.1115/1.2950065
Abstract
Automatic optimization techniques have been used in recent years for the aerodynamic and mechanical design of turbomachine components. Despite the many advantages, their use is usually limited to simple applications in industrial practice, because of their high computational cost. In this paper, an optimization strategy is presented, which enables the three-dimensional multipoint, multiobjective aerodynamic optimization of turbomachinery blades in a time frame compatible with industrial standards. The design strategy is based on the coupling of three-dimensional inverse design, response surface method, multiobjective evolutionary algorithms, and computational fluid dynamics analyses. The blade parametrization is performed by means of a three-dimensional inverse design method, where aerodynamic parameters, such as the blade loading, are used to describe the blade shape. Such a parametrization allows for a direct control of the aerodynamic flow field and performance, leading to a major advantage in the optimization process. The design method was applied to the redesign of a centrifugal and of an axial compressor stage. The two examples confirmed the validity of the design strategy to perform the three-dimensional optimization of turbomachine components, accounting for both design and off-design performance, in a time-efficient manner. The coupling of response functions and inverse design parametrization also allowed for an easy sensitivity analysis of the impact of the design parameters on the performance ones, contributing to the development of design guidelines that can be exploited for similar design applications.Keywords
This publication has 21 references indexed in Scilit:
- Analysis and Optimization of Transonic Centrifugal Compressor Impellers Using the Design of Experiments TechniqueJournal of Turbomachinery, 2006
- Parametric Optimization of a High-Lift Turbine VanePublished by ASME International ,2004
- Advanced High Turning Compressor Airfoils for Low Reynolds Number Condition: Part 1 — Design and OptimizationPublished by ASME International ,2003
- Numerical Optimization of Turbomachinery BladingsPublished by ASME International ,2003
- Response Surface Methodology—Current Status and Future DirectionsJournal of Quality Technology, 1999
- On the Design Criteria for Suppression of Secondary Flows in Centrifugal and Mixed Flow ImpellersJournal of Turbomachinery, 1998
- Viscous Analysis of Three-Dimensional Rotor Flow Using a Multigrid MethodJournal of Turbomachinery, 1994
- Inviscid-Viscous Interaction Method for Three-Dimensional Inverse Design of Centrifugal ImpellersJournal of Turbomachinery, 1994
- Navier-Stokes solution of transonic cascade flows using nonperiodic C-type gridsJournal of Propulsion and Power, 1992
- A compressible three‐dimensional design method for radial and mixed flow turbomachinery bladesInternational Journal for Numerical Methods in Fluids, 1991