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Multi-point optimization of lean and sweep angles for stator and rotor blades of an axial turbine
, Article Proceedings of the ASME Turbo Expo ; Vol. 2C, issue , 2014 ; Hajilouy-Benisi, A ; Assempour, A ; Pourfarzaneh, H
Abstract
In this research, numerical optimization of the rear part of a gas turbine, consisting of a single stage axial turbine is carried out. Automated aerodynamic shape optimization is performed by coupling a CFD flow simulation code with the Genetic Algorithm. An effective multi-point optimization method to improve efficiency and/or pressure ratio of the axial turbine is performed. Some variations of optimization parameters such as lean and sweep angels of stator and rotor blades are accomplished. Furthermore, during the optimization process, three-dimensional and turbulent flow field is numerically investigated using a compressible Navier-Stokes solver. The gas turbine experimental...